XXI 



Society, a Fellow of the Institute of Chemistry, an honorary member of 

 the Berlin Chemical Society, as also of the Philosophical Society of 

 Manchester, and the Pharmaceutical Society of Great Britain. 



It will be evident from an inspection of the titles of the numerous 

 papers (more than 100 in number) published by Dr. Stenhouse during 

 the past forty years, in the Transactions and Proceedings of the Royal 

 Society, the " Journal of the Chemical Society," " Liebig's Annalen," 

 and other scientific journals (either alone or in conjunction with 

 Mr. C. E. Groves), that these for the most part relate to what 

 may truly be called " Organic Chemistry," the chemistry of com- 

 pounds found in organised bodies, so that his name will long be asso- 

 ciated with numerous carbon compounds obtained from plants, and 

 derivatives formed from them. Among all these he applied himself 

 chiefly to the principles from the lichens, and made known the results 

 in eighteen papers. One of his communications, published in 1880, 

 is worth mention as it relates to " Betorcinol," a substance he had 

 discovered some thirty-two years previously. It is but seldom that 

 a chemist lives to complete a work begun so long before. 



Although the eminence he attained in organic research is fully 

 recognised, his contributions to our technical knowledge are not so 

 generally known. He was the author of many ingenious and useful 

 inventions in dyeing, waterproofing, sugar manufacture, and tanning ; 

 but the greatest and most permanent benefit has been conferred by 

 his application of the powerful absorbent properties of wood charcoal 

 to disinfecting and deodorising purposes, which took the form of 

 charcoal air-filters and charcoal respirators. 



Of Dr. Stenhouse's personal character, those who knew him inti- 

 mately could never speak too highly, his general conversation and 

 fund of anecdote rendering him a most pleasant companion. His in- 

 genuity and quick perception were remarkable, and this combined with 

 his unflagging industry, and patience and resignation in great bodily 

 suffering, enabled him to continue his scientific work with unabated 

 vigour, even after the effects of paralysis prevented him from per- 

 forming experiments with his own hands. 



Humphrey Lloyd was born in Dublin on the 16th of April, 1800. 

 His father was the Rev. Bartholomew Lloyd, afterwards Provost of 

 Trinity College, Dublin, at that time a Junior Fellow. Having re- 

 ceived his early education at Mr. White's school in Dublin, he entered 

 Trinity College on July 3, 1815, obtaining at the Entrance Examina- 

 tion, which was at that time altogether classical, first place among 

 sixty-three competitors. He obtained Scholarship (Classical) in 1818. 

 At the examination for the degree of B.A. he obtained the Science 

 Gold Medal, the highest honour which could be gained by an under- 

 graduate. In the year 1824 he obtained a Fellowship, given then, as 



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