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Boyal Society, Eankine is credited with eighty papers down to the year 

 1865. He has published a very considerable number since that date. 

 His last, and one of his most important contributions to the Philo- 

 sophical Transactions is that " On the Mathematical Theory of Stream- 

 lines," read before the Eoyal Society on'the 10th February, 1870. This 

 paper contains a remarkably complete investigation of the lines of motion 

 of particles of liquid in flowing past certain solid bodies, such as ships, and 

 of the mechanical as well as the geometrical character of the disturbance. 



It is satisfactory to reflect that his labours met with full recognition 

 during his lifetime from the scientific bodies best qualified to judge of 

 their merits. In 1849 he was elected a Fellow of the Eoyal Society of 

 Edinburgh. In 1850 he acted as Secretary to Section A of the British 

 Association, which then met at Edinburgh. In 1845 he was elected a 

 Member of the Philosophical Society of Glasgow, and in 1853 a Fellow of 

 the Eoyal Society of London. In 1854 he was awarded the Keith 

 Medal of the Eoyal Society of Edinburgh for researches in Thermo- 

 dynamics. In 1855 he was appointed one of the Visitors of Edinburgh 

 Observatory, and in the same year Eegius Professor of Civil Engineer- 

 ing and Mechanics in the University of Glasgow. He was also President 

 of Section G of the British Association when it met in Glasgow in 1855. 

 In 1856 he received the honorary degree of LL.D. of Trinity College, 

 Dublin. In 1863 he was awarded the gold medal of the Institution of 

 Engineers in Scotland for a paper " On the Liquefaction of Steam ; " and 

 in the same year he was President of Section A of the British Association 

 at Newcastle-on-Tyne. In 1867 he was again President of Section G- at 

 Dundee. In December 1870 he was appointed a member of the Admiralty 

 Committee on Ships of War, which arose out of the loss of H.M.S. 'Cap- 

 tain/ and he contributed largely to the scientific part of the report. 



His great industry and success in the field of science were never 

 allowed to interfere with the ordinary duties owing to society, or with 

 those sacrifices of time which all men are called upon to make for the 

 gratification of others. Thoroughly genial in company, affectionate and 

 beloved in his family circle, careful and yet liberal in the relations of 

 business, amiable and even in temper, it was as great a pleasure as it was 

 an honour to be counted among his friends. He has not unfrequently 

 sung a song of his own writing to music of his own composing ; and, what 

 is more, the voice, the music, and the words were all worth listening to. 



His illness began by a failing of the eyesight, which was at first sup- 

 posed to be local, but which afterwards proved to be but a symptom of 

 more deeply seated disease. Under treatment, he recovered from a severe 

 attack of illness in October 1872, and up to within five days of his death 

 no unfavourable symptoms occurred : then a change took place ; he 

 rapidly lost the power of speech, and the sensibility of the right side. 

 He died on the 24th December, 1872. 



He was never married. His only brother died while he was yet young, 

 and he lost his father and his mother a year or two before his own death. 



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