196 JOURNAL OF ECONOMIC ENTOMOLOGY [VoL 2 



he was recognized as being one of the foremost workers in economic 

 entomology, and had attained an international reputation. 



He was a prolific writer. He had published many bulletins, and 

 had contributed much to the periodical press, especially to The Rural 

 New Yorker, Country Life in America, The American Agriculturist, 

 The National Nurseryman, Entomological News and The Canadian 

 Entomologist. He was a contributor to the Encyclopsedia of Ameri- 

 can Horticulture and to the Encyclopaedia of American Agriculture. 

 At the time of his death he had in preparation a volume entitled 

 ''Insects Injurious to Fruit," which was to appear in Macmillan's 

 Rural Science Series. 



The position he attained was reached by untiring industry and 

 a devotion to truth. His work was characterized by painstaking thor- 

 oughness and an absence of anything sensational. His constant aim 

 was to determine the exact and complete truth and to present what he 

 discovered in a clear manner. In this he was very successful, both 

 in the class room and as a waiter. 



The bulletins that he published were in a marked degree mono- 

 graphic. Instead of writing about many insects, he selected a few 

 and discussed them thoroughly, working up so far as possible every 

 detail in the life-historj- of the species studied. It was doubtless this 

 feature that caused his work to be so widely known in other lands. 

 For example, his treatise on the Codling Moth was translated into 

 Russian and published in that language. 



Professor Slingerland took an active part in various scientific and 

 horticultural societies. He was president of the Association of Eco- 

 nomic Entomologists in 1903 ; chairman of the entomological section 

 of the Association of American Agricultural Colleges and Experiment 

 Stations in 1903 ; chairman of the committee on entomology of the 

 "Western New York Horticultural Society 1895-190-1 inclusive; and 

 chairman of the committee on entomology of the New York State 

 Fruit Growers' Association in 1903. 



As a teacher he was clear, direct and painstaking. He had the 

 keenest interest in the needs of each individual student. Only a few 

 hours before his death he discussed with a colleague the work of 

 several of his students. Even at that hour, when it was evident to 

 others that the end was near, his thought was not of himself but of 

 his students. 



In this manner closed the life of one who, although given but few 

 years to work, accomplished much, and who endeared himself to oth- 

 ers by his sterling qualities as a man and a friend. 



J. H. COMSTOCK. 



