3 i4 POPULAR SCIENCE MONTHLY 



most remarkable works in the whole field of biological literature. 

 Another memoir gives the results of his study of the anatomy of 

 snails and slugs. The inhabitants of the streams and ponds in the 

 vicinity of his home furnished an unfailing supply of material for re- 

 search and discovery, and many of his publications are on aquatic 

 animals. He finally became so much interested in the fresh-water 

 rhizopods that he abandoned all other scientific work in order to devote 

 all his attention to these animals. His results were published in the 

 memoir on The Fresh-water Rhizopods of North America. This is 

 the most widely known of his works. It is, and must long be, the 

 standard and classic upon its subject. I have no time to dwell upon 

 his work as the naturalist of the home — his best and most character- 

 istic work. Its lesson to later generations of naturalists seems to 

 me to be that one may be useful to his fellowmen, and enjoy the 

 keen pleasure of discovery, and come to honor and distinction, with- 

 out visiting strange countries in search of rarities, without biological 

 stations and marine laboratories, without the latest technical methods, 

 without grants of money, and, above all, without undertaking to solve 

 the riddles of the universe or resolving biology into physics and 

 chemistry. 



If one have the simple responsive mind of a child or of Leidy, 

 he may, like Leidy, ' find tongues in trees, books in the running brooks, 

 sermons in stones, and good in everything.' 



Edward Drinker Cope 



By Professor HENRY FAIRFIELD OSBORN 



COLUMBIA UNIVERSITY AND THE AMERICAN MUSEUM OF NATURAL HISTORY 



In the beautiful marble portrait of Edward Drinker Cope, 

 modeled by Mr. Couper and presented by President Jesup, you see 

 the man of large brain, of keen eye, and of strong resolve, the ideal 

 combination for a life of science, the man who scorns obstacles, who 

 while battling with the present looks above and beyond. The portrait 

 stands in its niche as a tribute to a great leader and founder of 

 American paleontology, as an inspiration to young Americans. In 

 unison with the other portraits its forcible words are : ' Go thou and do 

 likewise.' 



Cope, a Philadelphian, born July 28, 1840, passed away at the 

 early age of fifty-seven. Favored by heredity, through distinguished 

 ancestry of Pennsylvania quakers, who bequeathed intellectual keen- 

 ness and a constructive spirit. As a boy of eight entering a life of 

 travel and observation, and with rare precocity giving promise of the 

 finest qualities of his manhood. Of incessant activity of mind and 



