COMSTOCK, JOHN HENRY American entomologist, was born in Janesville, Wis., on Feb. 24, 1849. After his graduation at Cornell university in 1874, he pursued further study at Yale university in 1874-75 and at the University of Leipzig in 1888-89. He was instructor and assistant professor of entomology in 1875-78 at Cornell university, and, after serving as U.S. entomologist at Washington in 18 i 9-81, was made profes sor of entomology at Cornell university and continued in that chair until 1914 when he became professor emeritus. By his influential work as a teacher and by his researches and writings, he contributed notably to the advancement of entomological science, and rose to foremost rank among American entomologists. Besides numerous articles in scientific journals his published writings include : A Manual on the Study of Insects, with Anna Botsford Comstock (Ithaca, N.Y., 1895, 1904, 1907) ; Insect Life (1897, 1891) ; Introduction to Entomology (Ithaca, 1888, 1920, 1924); How to Know the Butterflies, with Anna B. Comstock (19o4); The Spider Book (1912); and The Wings of Insects (Ithaca, 1918).