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Birth of Lawrence Parsons, 4th Earl of Rosse

Lawrence Parsons, 4th Earl of Rosse, KP, FRS, a member of the Irish peerage and an amateur astronomer, is born at Birr Castle, Parsonstown, King’s County (now County Offaly), on November 17, 1840. His name is often given as Laurence Parsons.

Parsons is the son and heir of the astronomer William Parsons, 3rd Earl of Rosse, who built the “Leviathan of Parsonstown” reflecting telescope, largest of its day, and his wife, the Countess of Rosse (née Mary Field), an amateur astronomer and pioneering photographer. He succeeds his father in 1867 and is educated first at home by tutors, like John Purser, and after at Trinity College Dublin (TCD) and the University of Oxford. He is the brother of Charles Algernon Parsons, inventor of the steam turbine.

Parsons serves as the eighteenth Chancellor of Trinity College Dublin between 1885 and 1908. His father serves as the sixteenth Chancellor. He is Lord Lieutenant of King’s County and Custos Rotulorum of King’s County from 1892 until his death. He is also a Justice of the Peace for the county and is appointed High Sheriff of King’s County for 1867–68. He is knighted KP in 1890.

Parsons also performs some preliminary work in association with the practices of the electrodeposition of copper sulfate upon silver films circa 1865 while in search of the design for a truly flat mirror to use in a telescope. However, he finds it impossible to properly electroplate copper upon these silver films, as the copper contracts and detaches from the underlying glass substrate. His note has been cited as one of the earliest confirmations in literature that thin films on glass substrates experience residual stresses. He revives discussion in his work Nature’s August 1908 edition after witnessing similar techniques used to present newly devised searchlights before the Royal Society.

Although overshadowed by his father (when astronomers speak of “Lord Rosse”, it is almost always the father that they refer to), Parsons nonetheless pursues some astronomical observations of his own, particularly of the Moon. Most notably, he discovers NGC 2, a spiral galaxy in the constellation Pegasus.

Parsons is elected a Fellow of the Royal Society in December 1867 and delivers the Bakerian lecture there in 1873. He is vice-president of the society in 1881 and 1887. From 1896 he is President of the Royal Irish Academy. In May 1902 he is at Caernarfon to receive the honorary degree LL.D. (Legum Doctor) from the University of Wales during the ceremony to install the Prince of Wales (later King George V) as Chancellor of that university.

After some years of ill-health, Parsons dies on August 30, 1908, at Birr Castle and is buried in the local churchyard. He leaves a bequest to the Royal Society to establish the “Rosse Fund,” and a further £1,000 to the science school fund at TCD.


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Death of Physicist George Johnstone Stoney

George Johnstone Stoney FRS, Irish physicist, dies on July 5, 1911, at Notting Hill, London, England. He is most famous for introducing the term “electron” as the “fundamental unit quantity of electricity.” He introduces the concept, though not the word, as early as 1874, initially naming it “electrine,” and the word itself comes in 1891. He publishes around 75 scientific papers during his lifetime.

Stoney is born on February 15, 1826, at Oakley Park, near Birr, County Offaly, in the Irish Midlands, the son of George Stoney and Anne (née Bindon Blood). His only brother is Bindon Blood Stoney, who becomes chief engineer of the Dublin Port and Docks Board. The Stoney family is an old-established Anglo-Irish family. During the time of the famine (1845–52), when land prices plummet, the family property is sold to support his widowed mother and family. He attends Trinity College Dublin (TCD), graduating with a BA degree in 1848. From 1848 to 1852 he works as an astronomy assistant to William Parsons, 3rd Earl of Rosse, at Birr Castle, County Offaly, where Parsons had built the world’s largest telescope, the 72-inch Leviathan of Parsonstown. Simultaneously he continues to study physics and mathematics and is awarded an MA by TCD in 1852.

From 1852 to 1857, Stoney is professor of physics at Queen’s College Galway. From 1857 to 1882, he is employed as Secretary of the Queen’s University of Ireland, an administrative job based in Dublin. In the early 1880s, he moves to the post of superintendent of Civil Service Examinations in Ireland, a post he holds until his retirement in 1893. He continues his independent scientific research throughout his decades of non-scientific employment duties in Dublin. He also serves for decades as honorary secretary and then vice-president of the Royal Dublin Society (RDS), a scientific society modeled after the Royal Society of London and, after his move to London in 1893, he serves on the council of that society as well. Additionally, he intermittently serves on scientific review committees of the British Association for the Advancement of Science from the early 1860s.

Stoney publishes seventy-five scientific papers in a variety of journals, but chiefly in the journals of the Royal Dublin Society. He makes significant contributions to cosmic physics and to the theory of gases. He estimates the number of molecules in a cubic millimeter of gas, at room temperature and pressure, from data obtained from the kinetic theory of gases. His most important scientific work is the conception and calculation of the magnitude of the “atom of electricity.” In 1891, he proposes the term “electron” to describe the fundamental unit of electrical charge, and his contributions to research in this area lays the foundations for the eventual discovery of the particle by J. J. Thomson in 1897.

Stoney’s scientific work is carried out in his spare time. A heliostat he designed is in the Science Museum Group collection. He is elected a Fellow of the Royal Society in June 1861.

Stoney proposes the first system of natural units in 1881. He realizes that a fixed amount of charge is transferred per chemical bond affected during electrolysis, the elementary charge e, which can serve as a unit of charge, and that combined with other known universal constants, namely the speed of light c and the Newtonian constant of gravitation G, a complete system of units can be derived. He shows how to derive units of mass, length, time and electric charge as base units. Due to the form in which Coulomb’s law is expressed, the constant 4πε0 is implicitly included, ε0 being the vacuum permittivity.

Like Stoney, Max Planck independently derives a system of natural units (of similar scale) some decades after him, using different constants of nature.

Hermann Weyl makes a notable attempt to construct a unified theory by associating a gravitational unit of charge with the Stoney length. Weyl’s theory leads to significant mathematical innovations, but his theory is generally thought to lack physical significance.

Stoney marries his cousin, Margaret Sophia Stoney, by whom he has had two sons and three daughters. One of his sons, George Gerald Stoney FRS, is a scientist. His daughter Florence Stoney OBE is a radiologist while his daughter Edith is considered to be the first woman medical physicist. His most scientifically notable relative is his nephew, the Dublin-based physicist George Francis FitzGerald. He is second cousin of the grandfather of Ethel Sara Turing, mother of Alan Turing.

After moving to London, Stoney lives first at Hornsey Rise, north London, before moving to 30 Chepstow Crescent, Notting Hill, west London. In his later years illness confines him to a single floor of the house, which is filled with books, papers, and scientific instruments, often self-made. He dies at his home on July 5, 1911. His cremated ashes are buried in St. Nahi’s Church, Dundrum, Dublin.

Stoney receives an honorary Doctor of Science (D.Sc.) from the University of Dublin in June 1902. Also in 1902, he is elected as a member to the American Philosophical Society. The street that he lived on in Dundrum is later renamed Stoney Road in his memory.

Craters on Mars and the Moon are named in his honour.


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Birth of Robert Mallet, the Father of Seismology

Robert Mallet, geophysicist, civil engineer, and inventor who distinguishes himself in research on earthquakes and is sometimes called the Father of Seismology, is born in Dublin on June 3, 1810.

Mallet is the son of factory owner John Mallet. He is educated at Trinity College, Dublin, entering it at the age of 16 and graduating in science and mathematics in 1830 at the age of 20.

Following his graduation, Mallet joins his father’s iron foundry business and helps build the firm into one of the most important engineering works in Ireland, supplying ironwork for railway companies, the Fastnet Rock lighthouse, and a swing bridge over the River Shannon at Athlone. He also helps manufacture the characteristic iron railings that surround Trinity College, and which bear his family name at the base.

Mallet is elected to the Royal Irish Academy in 1832 at the early age of 22. He also enrolls in the British Association for the Advancement of Science in 1835 which helps finance much of his research in seismology.

In 1838 Mallet becomes a life member of the Royal Geological Society of Ireland and serves as its President from 1846–1848. From 1848–1849 he constructs the Fastnet Rock lighthouse, southwest of Cape Clear.

On February 9, 1846, Mallet presents to the Royal Irish Academy his paper On the Dynamics of Earthquakes, which is considered to be one of the foundations of modern seismology. He is also credited with coining the word “seismology” and other related words which he uses in his research. He also coins the term epicentre.

From 1852 to 1858, Mallet is engaged in the preparation of his work, The Earthquake Catalogue of the British Association (1858) and carries out blasting experiments to determine the speed of seismic propagation in sand and solid rock.

On December 16, 1857, the area around Padula, Italy is devastated by the Great Neapolitan earthquake which causes 11,000 deaths. At the time it is the third largest known earthquake in the world and has been estimated to have been of magnitude 6.9 on the Richter Scale. Mallet, with letters of support from Charles Lyell and Charles Darwin, petitions the Royal Society of London and receives a grant of £150 to go to Padula and record at first hand the devastation. The resulting report is presented to the Royal Society as the Report on the Great Neapolitan Earthquake of 1857. It is a major scientific work and makes great use of the then new research tool of photography to record the devastation caused by the earthquake. In 1862, he publishes the Great Neapolitan Earthquake of 1857: The First Principles of Observational Seismology in two volumes. He brings forward evidence to show that the depth below the Earth’s surface, from where the impulse of the Neapolitan earthquake originated, is about 8–9 geographical miles.

One of Mallet’s papers is Volcanic Energy: An Attempt to develop its True Origin and Cosmical Relations, in which he seeks to show that volcanic heat may be attributed to the effects of crushing, contortion, and other disturbances in the crust of the earth. The disturbances leading to the formation of lines of fracture, more or less vertical, down which water would find its way, and if the temperature generated be sufficient volcanic eruptions of steam or lava would follow.

Mallet is elected Fellow of the Royal Society in 1854, and in 1861 moves to London, where he becomes a consulting engineer and edits The Practical Mechanic’s Journal. He is awarded the Telford Medal by the Institution of Civil Engineers in 1859, followed by the Cunningham Medal of the Royal Irish Academy for his research into the theory of earthquakes in 1862, and the Wollaston Medal of the Geological Society of London in 1877, the Geological Society’s highest award.

Blind for the last seven years of his life, Robert Mallet dies at Stockwell, London, on November 5, 1881, and is buried at West Norwood Cemetery.


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Birth of Mary Field Parsons, Countess of Rosse

Mary Parsons (née Field), Countess of Rosse, Anglo-Irish amateur astronomer, architect, furniture designer, and pioneering photographer, is born on April 14, 1813, at Heaton Hall, Heaton, Bradford, West Yorkshire, England. Often known simply as Mary Rosse, she is one of the early practitioners of making photographs from waxed-paper negatives.

Field is the daughter of John Wilmer Field, a wealthy estate owner. She has a sister, Delia, and they are educated at home by Susan Lawson, a governess who encourages her creativity and broad interests, including astronomy. The sisters are joint heirs to their father’s fortune.

Through her family Field meets William Parsons, then Lord Oxmantown and the future 3rd Earl of Rosse, an Anglo-Irish astronomer and naturalist, and they are married on April 14, 1836, her 23rd birthday. In February 1841, Lord Oxmantown succeeds his father in the family peerage to become the 3rd Earl of Rosse. She, Baroness Oxmantown since her marriage, thus now becomes the Countess of Rosse.

In the early 1840s the couple becomes interested in astronomy, and the Countess of Rosse helps her husband build a number of giant telescopes, including the so-called Leviathan of Parsonstown, that is considered a technical marvel in its time. The author, Henrietta Heald, contends that she is not only a financial support to the building of the telescope, but is also involved in a practical and intellectual capacity. The Leviathan of Parsontown is completed in 1845 and holds the record as the world’s largest telescope for over 70 years. It is mentioned in Jules Verne’s science fiction novel, From the Earth to the Moon.

The Countess of Rosse is an accomplished blacksmith, which is very unusual for higher class women of the time, and she may have constructed some of the iron work that supports the telescope. Other metal cast items around the castle grounds are designed by her, including bronze gates.

During the Great Famine of 1845–47 in Ireland, the Countess of Rosse is responsible for keeping over five hundred men employed in work in and around Birr Castle, where she and her husband live.

The Countess of Rosse creates a huge dining room at Birr Castle in which to entertain scientific guests, which becomes increasingly used when Lord Rosse becomes President of the Royal Society of London in 1848. Guests include mathematician William Rowan Hamilton, who writes her a sonnet about his experience of gazing through the Leviathan.

In 1842, Lord Rosse begins experimenting in daguerreotype photography, possibly learning some of the art from his acquaintance William Henry Fox Talbot. In 1854, he writes to Fox Talbot saying that the Countess too has just commenced photography and sends some examples of her work. Fox Talbot replies that some of her photographs of the telescope “are all that can be desired.”

The Countess of Rosse becomes a member of the Dublin Photographic Society, and in 1859 she receives a silver medal for “best paper negative” from the Photographic Society of Ireland. Many examples of her photography are in the Birr Castle Archives. Much of the topography of Birr Castle that she portrayed has changed very little, and it is possible to compare many of her photographs with the actual places. She records the Leviathan in her photographs including one image showing her three sons, Clere, Randal and Charles along with her sister-in-law, Jane Knox, standing upright at the mouth of the telescope.

The Countess of Rosse gives birth to eleven children, but only four survive to adulthood:

Mary, Dowager Countess of Rosse, dies in 1885.


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Birth of John Lighton Synge, Mathematician & Physicist

John Lighton Synge FRSC FRS, mathematician and physicist, whose seven-decade career includes significant periods in Ireland, Canada, and the United States, is born in Dublin on March 23, 1897. He is a prolific author and influential mentor and is credited with the introduction of a new geometrical approach to the theory of relativity.

Synge is born into a prominent Church of Ireland family. His uncle, John Millington Synge, is a famous playwright. He is more distantly related to the winner of the 1952 Nobel Prize in Chemistry, Richard Laurence Millington Synge. He is a great-great-great-grandson of the mathematician and bishop Hugh Hamilton.

Synge attends St. Andrew’s College, Dublin and in 1915 enters Trinity College Dublin (TCD). He is elected a Foundation Scholar his first year, which is unusual as it is normally won by more advanced students. While an undergraduate at TCD, he spots a non-trivial error in Analytical Dynamics of Particles and Rigid Bodies, a textbook by E. T. Whittaker, who had recently taught there, and notifies Whittaker of the error. In 1919 he is awarded a BA in Mathematics and Experimental Physics, and also a gold medal for outstanding merit. In 1922 he is awarded an MA, and in 1926 a Sc.D., the latter upon submission of his published papers up to then.

In 1918, Synge marries Elizabeth Eleanor Mabel Allen. She is also a student at TCD, first of mathematics, then of history, but family finances forced her to leave without graduating. Their daughters Margaret (Pegeen), Cathleen and Isabel are born in 1921, 1923 and 1930 respectively. The middle girl grows up to become the distinguished Canadian mathematician Cathleen Synge Morawetz.

Synge is appointed to the position of lecturer at Trinity College, and then accepts a position at the University of Toronto in 1920, where he is an assistant professor of mathematics until 1925. There he attends lectures by Ludwik Silberstein on the theory of relativity, stimulating him to contribute “A system of space-time co-ordinates,” a letter in Nature in 1921.

Synge returns to Trinity College Dublin, in 1925, where he is elected to a fellowship and is appointed the University Professor of Natural Philosophy (later to be known as “physics”). He is a member of the American Mathematical Society and the London Mathematical Society. He is treasurer of the Royal Irish Academy in 1929. He goes back to Toronto in 1930, where he is appointed Professor of Applied Mathematics and becomes Head of the Department of Applied Mathematics. In 1940, he supervises three Chinese students, Guo Yonghuai, Qian Weichang and Chia-Chiao Lin, who later become leading applied mathematicians in China and the United States.

Synge spends some of 1939 at Princeton University, and in 1941, he is a visiting professor at Brown University. In 1943 he is appointed as Chairman of the Mathematics Department of Ohio State University. Three years later he becomes Head of the Mathematics Department of the Carnegie Institute of Technology in Pittsburgh, where John Nash, Jr. is one of his students. He spends a short time as a ballistic mathematician in the United States Air Force between 1944 and 1945.

Synge returns to Ireland in 1948, accepting the position of Senior Professor in the School of Theoretical Physics at the Dublin Institute for Advanced Studies. This school had been set up in 1940, and had several outstanding members, including Erwin Schrödinger, a contributor to quantum mechanics, who is also a Senior Professor.

Synge makes outstanding contributions to different fields of work including classical mechanics, general mechanics and geometrical optics, gas dynamics, hydrodynamics, elasticity, electrical networks, mathematical methods, differential geometry, and Albert Einstein‘s theory of relativity. He studies an extensive range of mathematical physics problems, but his best-known work revolves around using geometrical methods in general relativity.

Synge is one of the first physicists to seriously study the interior of a black hole, and his early work is cited by both Martin David Kruskal and George Szekeres in their independent discoveries of the true structure of the Schwarzschild black hole. Synge’s later derivation of the Szekeres-Kruskal metric solution, which is motivated by a desire to avoid “using ‘bad’ coordinates to obtain ‘good’ coordinates,” has been generally under-appreciated in the literature, but is adopted by Chandrasekhar in his black hole monograph.

In pure mathematics, Synge is perhaps best known for Synge’s theorem, which concerns the topology of closed orientable Riemannian manifold of positive sectional curvature. When such a space is even-dimensional and orientable, the theorem says it must be simply connected. In odd dimensions, it instead says that such a space is necessarily orientable.

Synge also creates the game of Vish in which players compete to find circularity (vicious circles) in dictionary definitions.

Synge retires in 1972. He receives many honours for his works. He is elected as a fellow of the Royal Society of London in 1943. He is elected as a fellow of the Royal Society of Canada, and in 1943 is the first recipient of the society’s Henry Marshall Tory Medal, as one of the first mathematicians working in Canada to be internationally recognised for his research in mathematics. In 1954 he is elected an honorary fellow of Trinity College Dublin. He is president of the Royal Irish Academy from 1961 until 1964. The Royal Society of Canada establishes the John L. Synge Award in his honour in 1986.

Synge dies on March 30, 1995, in Dublin, exactly one week after his ninety-eighth birthday.


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Death of Edward Cecil Guinness, 1st Earl of Iveagh

Edward Cecil Guinness, 1st Earl of Iveagh, Irish businessman and philanthropist, dies at his London home in Grosvenor Place on October 7, 1927

Guinness is born on November 10, 1847 at St. Anne’s, Clontarf, County Dublin, the youngest of three sons of Sir Benjamin Lee Guinness, brewer, of Dublin, and Elizabeth, third daughter of Edward Guinness of Dublin. He is not sent to public school but is taught at home by a private tutor before entering Trinity College Dublin, where he takes his degree in 1870. His father dies in 1868, leaving him a share in the brewery, and he takes over management of the business with his brother Arthur, who in 1876 sells his shares, making Edward sole proprietor.

Guinness is also prominent in municipal life, holding the offices of Sheriff of Dublin City in 1876 and High Sheriff of the County of Dublin in 1885, the year in which he is created a baronet. He is a brilliantly effective businessman, with close attention to detail and a focus solely on the brewery, to the extent of remaining independent from the rest of the brewing trade. In 1888 he bluntly tells the Country Brewers’ Association, “I have always declined to identify myself with any trade question, or to take any side in a controversy on the liquor question, and to this I must adhere.” In 1886 Guinness is floated as a public company, a superbly successful venture with applications for shares exceeding £100 million, and Edward remains as chairman until 1890, although his formal retirement in that year brings little reduction in his involvement with the company, and he continues to make the final decision on many minor matters as well as all major questions of policy.

Socially innovative, with a concern for the welfare of employees, from as early as 1870 Guinness establishes a free dispensary for his workforce and makes provisions for pension and other allowances – acts of social reform that are remarkable for the time. To mark his retirement in 1890 he places in trust £250,000 to be expended in the erection of working-class housing in London and Dublin. Both funds are administered from London until 1903, when the Dublin fund is amalgamated by the Iveagh Trust act with other schemes carried out in Dublin by Edward, who had been raised to the peerage of the United Kingdom in 1891 as Baron Iveagh of Iveagh, County Down. The funds, which increase considerably from the original amount, are thereafter managed entirely in Dublin as a separate undertaking under the name of the Iveagh Trust, still in existence in the early twenty-first century.

As one of the pioneers of the voluntary housing movement Guinness is essentially carrying on the tradition of “merchant prince and city father” established by his father and shared by his brother. Wealthy, ambitious, and resolutely unionist, he gives generous financial support to the Irish Unionist Alliance, and is also public-spirited, religious, and devoted to duty. Acknowledging that the Iveagh Trust is essentially ameliorative, he believes that major social change will only be achieved if numerous other wealthy people follow his example. He insists that gifts of money from the fund are permissible only to assist individuals to improve their condition “without placing them in the position of being the recipients of a bounty.” Numerous other philanthropic donations follow, including another £250,000 for slum clearance in the Bull Alley district of Dublin; various contributions to Dublin hospitals, particularly in 1903 and 1911 on the occasion of royal visits; and in 1907 the opening of the Iveagh Markets, situated in the Francis Street and Patrick Street areas of Dublin, are made possible with his financial backing. Generous contributions are also made to Trinity College Dublin, of which he is elected chancellor in 1908, and he donates land in Iveagh Gardens to University College Dublin (UCD).

In 1905 Guinness is raised to a viscountcy and in September 1909 the nationalist corporation of Dublin presents him with an address of thanks for his many gifts, and even discusses the possibility of offering him the lord mayoralty of the city, which he declines owing to his political affiliations. By this time he lives chiefly in England, having bought Elveden Hall in Suffolk, where he frequently entertains royalty. He also purchases Lord Kensington’s London estate and makes many donations to medical research societies in England, and in conjunction with Sir Ernest Cassel he founds the London Radium Institute, as well as donates £250,000 to the Laster Institute of Tropical Medicine for the endowment of bacteriological research.

In 1919 Guinness is elevated to an earldom and in 1925 purchases the remainder of the Kenwood estate to the north of Hampstead Heath and arranges for it to become public property, ensuring the estate will not be sold for building purposes, and also bequeaths to the nation a valuable collection of art for use in the gallery at the same location. As well as being elected a fellow of the Royal Society, he is awarded honorary doctorates from the University of Dublin and the University of Aberdeen.

In 1873, Guinness marries his third cousin Adelaide Maud, nicknamed “Dodo.” She is descended from the banking line of Guinnesses, and is the daughter of Richard Samuel Guinness, barrister and MP, and his wife Katherine, a daughter of Sir Charles Jenkinson. They have three sons, the eldest of whom, Rupert Edward Cecil Lee, succeeds his father as 2nd Earl of Iveagh.

Guinness dies at his London home in Grosvenor Place on October 7, 1927, and is buried at Elveden, Suffolk. He leaves an estate valued at £11 million.


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Birth of Mary Ward, Astronomer, Microscopist, Author & Artist

Mary Ward (née King), Irish naturalist, astronomer, microscopist, author, and artist, is born in Ballylin near present-day Ferbane, County Offaly, on April 27, 1827. She is killed in 1869 when she falls under the wheels of an experimental steam car built by her cousins, thereby becoming the first person known to be killed by a motor vehicle.

King is the youngest child of the Reverend Henry King and his wife Harriette. She and her sisters are educated at home, as are most girls at the time. However, her education is slightly different from the norm because she is of a renowned scientific family. She is interested in nature from an early age, and by the time she is three years old she is collecting insects.

King is a keen amateur astronomer, sharing this interest with her cousin, William Parsons, 3rd Earl of Rosse, who builds the Leviathan of Parsonstown, a reflecting telescope with a six-foot mirror which remains the world’s largest until 1917. She is a frequent visitor to Birr Castle, producing sketches of each stage of the process. Along with photographs made by Parson’s wife, Mary Rosse, her sketches are used to aid in the restoration of the telescope.

King also draws insects, and the astronomer James South observes her doing so one day. She is using a magnifying glass to see the tiny details, and her drawing so impresses him that he immediately persuades her father to buy her a microscope. A compound microscope made by Andrew Ross is purchased for £48 12s 8d. This is the beginning of a lifelong passion. She begins to read everything she can find about microscopy, and teaches herself until she has an expert knowledge. She makes her own slides from slivers of ivory, as glass is difficult to obtain, and prepares her own specimens. The physicist David Brewster asks her to make his microscope specimens, and uses her drawings in many of his books and articles.

Universities and most societies do not accept women at the time, but King obtains information any way she can. She writes frequently to scientists, asking them about papers they had published. During 1848, Parsons is made president of the Royal Society, and visits to his London home allows her to meet many scientists.

King is one of only three women on the mailing list for the Royal Astronomical Society. The others are Queen Victoria and Mary Somerville, a scientist for whom Somerville College at the University of Oxford is named.

On December 6, 1854, King marries Henry Ward of Castle Ward, County Down, who in 1881 succeeds to the title of Viscount Bangor. They have three sons and five daughters, including Maxwell Ward, 6th Viscount Bangor. Her best-known descendants are her grandson, Edward Ward, the foreign correspondent and seventh viscount, and his daughter, the Doctor Who actress Lalla Ward.

When Ward writes her first book, Sketches with the microscope (privately printed in 1857), she apparently believes that no one will print it because of her gender or lack of academic credentials. She publishes 250 copies of it privately, and several hundred handbills are distributed to advertise it. The printing sells during the next few weeks, which prompts a London publisher to take the risk and contract for future publication. The book is reprinted eight times between 1858 and 1880 as A World of Wonders Revealed by the Microscope. A new full-colour facsimile edition at €20 is published in September 2019 by the Offaly Historical and Archaeological Society, with accompanying essays.

Her books are A Windfall for the Microscope (1856), A World of Wonders, Revealed by the Microscope (1857), Entomology in Sport, and Entomology in Earnest (1857, with Lady Jane Mahon), Microscope Teachings (1864), Telescope Teachings (1859). She illustrates her books and articles herself, as well as many books and papers by other scientists.

Ward is the first known automobile fatality. William Parsons’ sons had built a steam-powered car and on August 31, 1869, she and her husband are traveling in it with the Parsons boys, Richard Clere Parsons and the future steam turbine pioneer Charles Algernon Parsons, and their tutor, Richard Biggs. She is thrown from the car on a bend in the road at Parsonstown (present-day Birr, County Offaly). She falls under its wheel and dies almost instantly. A doctor who lives near the scene arrives within moments, and finds her cut, bruised, and bleeding from the ears. The fatal injury is a broken neck. It is believed that the grieving family destroys the car after the crash.

Ward’s microscope, accessories, slides and books are on display in her husband’s home, Castle Ward, County Down. William Parsons’ home at Birr Castle, County Offaly, is also open to the public.


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Death of John Hewitt Jellett, Mathematician & Priest

John Hewitt Jellett, Irish mathematician whose career is spent at Trinity College Dublin (TCD), where he rises to the rank of Provost, dies in Dublin on February 19, 1888. He is also a priest in the Church of Ireland.

Jellett is born at Cashel, County Tipperary, on December 25, 1817, the son of Rev. Morgan Jellett and his wife Harriette Townsend, daughter of Hewitt Baldwin Poole of County Cork, by his wife Dorothea Morris. He is the eldest brother of Hewitt Poole Jellett, Serjeant-at-law (Ireland) and Chairman of the Quarter Sessions for County Laois, and of the Venerable Henry Jellett, Archdeacon of Cloyne. He is educated at Kilkenny College and at TCD, where he becomes a fellow in 1840.

Jellett marries his cousin on his mother’s side, Dorothea Charlotte Morris Morgan, daughter of James Morgan, on July 7, 1855. The marriage produces seven children. His son, William Morgan Jellett, is a member of the Parliament of the United Kingdom and is the father of the celebrated artist Mainie Jellett, and of Dorothea Jellett, director of the orchestra of the Gaiety Theatre, Dublin. Another son Henry Holmes Jellett is a civil engineer in British India. His daughter Harriette Mary Jellett is the wife of the noted Irish physicist George Francis FitzGerald. Another daughter Eva Jellett is the first woman to graduate with a degree in medicine from Trinity and goes on to practice as a doctor in India.

Jellett graduates B.A. in mathematics in 1837, M.A. 1843, B.D. 1866, and D.D. 1881. He is ordained a priest in 1846. In 1848 he is elected to the chair of natural philosophy at TCD, and in 1868 he receives the appointment of commissioner of Irish national education.

In 1851 Jellett is awarded the Cunningham Medal of the Royal Irish Academy for his work on the “Calculus of Variations.” The society later elects him their president, a position he holds from 1869 to 1874.

In 1870, on the death of Dr. Thomas Luby, Jellett is co-opted a Senior Fellow, and thus a member of the Board of TCD. William Ewart Gladstone‘s government in February 1881 appoints him provost of Trinity. In the same year he is awarded a Royal Medal by the Royal Society.

After the disestablishment of the Church of Ireland by the Irish Church Act 1869, Jellett takes an active part in the deliberations of the general synod and in every work calculated to advance its interests. He is an able mathematician and writes A Treatise of the Calculus of Variations (1850), and A Treatise on the Theory of Friction (1872), as well as several papers on pure and applied mathematics, articles in the Transactions of the Royal Irish Academy. He also writes some theological essays, sermons, and religious treatises, of which the principals are An Examination of some of the Moral Difficulties of the Old Testament (1867), and The Efficacy of Prayer (1878).

Jellett dies of blood poisoning at the provost’s house, TCD, on February 19, 1888, and is buried in Mount Jerome Cemetery on February 23. The funeral procession is the largest that ever left Trinity.

(Pictured: “John Hewitt Jellett,” oil on canvas by Sarah Purser)


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Birth of Thomas Andrews, Chemist & Physicist

Thomas Andrews FRS FRSE, chemist and physicist who does important work on phase transitions between gases and liquids, is born in Belfast on December 19, 1813. He is a longtime professor of chemistry at Queen’s University Belfast.

Andrews’ father is a linen merchant. He attends the Belfast Academy and the Royal Belfast Academical Institution, where at the latter of which he studies mathematics under James Thomson. In 1828 he goes to the University of Glasgow to study chemistry under Professor Thomas Thomson, then studies at Trinity College, Dublin, where he gains distinction in classics as well as in science. Finally, at University of Edinburgh in 1835, he is awarded a doctorate in medicine.

Andrews begins a successful medical practice in his native Belfast in 1835, also giving instruction in chemistry at the Academical Institution. In 1842, he marries Jane Hardie Walker (1818–1899). They have six children, including the geologist Mary Andrews. In 1845 he is appointed vice-president of the newly established Queen’s University Belfast, and professor of chemistry there. He holds these two offices until his retirement in 1879 at age 66.

Andrews first becomes known as a scientific investigator with his work on the heat developed in chemical actions, for which the Royal Society awards him a Royal Medal in 1844. Another important investigation, undertaken in collaboration with Peter Guthrie Tait, is devoted to ozone.

Andrews’ reputation mainly rests on his work with liquefaction of gases. In the 1860s he carries out a very complete inquiry into the gas laws, expressing the relations of pressure, temperature, and volume in carbon dioxide. In particular, he establishes the concepts of critical temperature and critical pressure, showing that a substance passes from vapor to liquid state without any breach of continuity.

In Andrews’ experiments on phase transitions, he shows that carbon dioxide may be carried from any of the states we usually call liquid to any of those we usually call gas, without losing homogeneity. The mathematical physicist Josiah Willard Gibbs cites these results in support of the Gibbs free energy equation. They also set off a race among researchers to liquify various other gases. In 1877-78 Louis Paul Cailletet is the first to liquefy oxygen.

Andrews dies in Belfast on November 26, 1885, and is buried in the Borough Cemetery in the city.


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Death of Lawrence Parsons, 4th Earl of Rosse

Lawrence Parsons, 4th Earl of Rosse, KP, FRS, a member of the Irish peerage and an amateur astronomer, dies on August 29, 1908. His name is often given as Laurence Parsons.

Parsons is born at Birr Castle, Parsonstown, King’s County (now County Offaly), the son and heir of the astronomer William Parsons, 3rd Earl of Rosse, who built the “Leviathan of Parsonstown” reflecting telescope, largest of its day, and his wife, the Countess of Rosse (née Mary Field), an amateur astronomer and pioneering photographer. He succeeds his father in 1867 and is educated first at home by tutors, like John Purser, and after at Trinity College, Dublin and the University of Oxford. He is the brother of Charles Algernon Parsons, inventor of the steam turbine.

Parsons serves as the eighteenth Chancellor of Trinity College, Dublin between 1885 and 1908. His father serves as the sixteenth Chancellor. He is Lord Lieutenant of King’s County and Custos Rotulorum of King’s County from 1892 until his death. He is also a Justice of the Peace for the county and is appointed High Sheriff of King’s County for 1867–68. He is knighted KP in 1890.

Parsons also performs some preliminary work in association with the practices of the electrodeposition of copper sulfate upon silver films circa 1865 while in search of the design for a truly flat mirror to use in a telescope. However, he finds it impossible to properly electroplate copper upon these silver films, as the copper contracts and detaches from the underlying glass substrate. His note has been cited as one of the earliest confirmations in literature that thin films on glass substrates experience residual stresses. He revives discussion in his work Nature’s August 1908 edition after witnessing similar techniques used to present newly devised searchlights before the Royal Society.

Although overshadowed by his father (when astronomers speak of “Lord Rosse”, it is almost always the father that they refer to), Parsons nonetheless pursues some astronomical observations of his own, particularly of the Moon. Most notably, he discovers NGC 2, a spiral galaxy in the constellation Pegasus.

Parsons is elected a Fellow of the Royal Society in December 1867 and delivers the Bakerian lecture there in 1873. He is vice-president of the society in 1881 and 1887. From 1896 he is President of the Royal Irish Academy. In May 1902 he is at Caernarfon to receive the honorary degree LL.D. (Legum Doctor) from the University of Wales during the ceremony to install the Prince of Wales (later King George V) as Chancellor of that university.