Vol. XXvii] ENTOMOLOGICAL NEWS. 47 



in the daily papers. He was born in London in 1849 and at 

 the time of his death was professor of organic chemistry in 

 the University of London. His work was mainly with the 

 chemical structure of organic compounds containing nitrogen 

 and devising synthetical methods for producing coloring mat- 

 ters, as from coal-tar, but he found time to devote to ento-' 

 mology, especially on its physiological and evolutionary sides. 

 One of his earliest papers was On the amount of suhstancc- 

 zvastc undergone by insects in the pupal state, with remarks 

 on Papilio ajax (1873), based in part on W. H. Edwards' 

 tables, which led to a mild controversy with S. H. Scudder. 

 At least eight papers, from 1872 to 1905, dealt with protec- 

 tive resemblance and mimicry, and he was one of the earliest 

 exponents in England of Miillerian mimicry. His presidential 

 addresses to the Entomological Society of London (which he 

 joined in 1872) were on The Speculative Method in Entomol- 

 ogy (1895) and The Utility of Specific Characters and Physi- 

 ological Correlation (1896). On the one hand he translated 

 and edited Weismann's Studies in the Theory of Descent 

 (1882) and on the other indulged in local faunistics, as evi- 

 denced by The Lcpidoptera of Leyton and Neighbourhood: 

 a contribution to the County Fauna (1891) and JJliat has 

 become of the British Satyridaef (1911). He was a member 

 of the Royal, chemical and other technical societies and had 

 received several honorary degrees. 



Dr. Frederick William Russell, for many years a prac- 

 titioner in the town of Winchendon, Massachusetts, died at 

 the residence of his son-in-law, Dr. Frank J. Hall, 41 19 Cedar 

 Springs Avenue, Dallas, Texas, November 20, 191 5, aged 

 seventy-one. 



He graduated from Harvard College in the class of 1869, 

 and from the Medical Department of New York University 

 in the class of 1871. He was a hospital steward during the 

 Civil War, and served in that capacity under his father, Dr. 

 Ira Russell, who was commissioned by Abraham Lincoln to 

 organize the hospital service in Tennessee, Missouri and Ar- 



