506 PROCEEDINGS OF THE WARHINGTOX MEETING 



and as a teacher he also possessed the power of awakening the mind of 

 the beginner, and making of every pupil an investigator. The writer 

 well remembers his own gropings in the dark in making the acquaintance 

 of the carapace of the lobster, Professor Hyatt having placed this in his 

 hands for an observation lesson, and the uplifting of soul that came with 

 the consciousness that even the beginner may taste the joy of discovery. 



In 1870 Professor Hyatt went to Salem, where he was associated with 

 Messrs. Packard, Putnam, and Morse, his fellow-students under Agassiz, 

 in the work of the Essex Institute and Peabod}^ Academy ; and here 

 these four men, destined to be life-long friends, founded and for some 

 years edited the American Naturalist. 



In 1870 Professor Hyatt became custodian of the Boston Society of 

 Natural History, and in the care and development of its museum en- 

 tered upon one of the great works of his life. Here was a field where 

 some of the advanced ideas with which his mind was teeming might be 

 developed for the benefit of the public. In the language of a pupil and 

 fellow-worker, he was keenly alive to the correlations existing both in the 

 inorganic and organic world : it was his constant aim to demonstrate 

 these reciprocal relations; his success in this work was such as to make 

 this museum one the arrangement of whose material, both from a scien- 

 tific and an educational point of view, challenges the progressive thought 

 of the twentieth centur}^ ; and nowhere, probably, have the principles of 

 a natural classification based upon genetic relationship been more faith- 

 fully and admirably worked out. 



From 1870 until 1888 Professor Hj^att also held the chair of zoology 

 and paleontology in the Massachusetts Institute of Technology, and from 

 1877 the chair of biology in Boston Universit3^ At the time of his death 

 he had been for many years in charge of the collection of invertebrate 

 fossils in the Museum of Comparative Zoology at Cambridge, and was 

 connected with the United States Geological Surve\\ 



He was elected a member of the National Academy in 1875, and has 

 held membership in many other scientific societies, both in this country 

 and abroad. He was one of the founders and the first president of the 

 American Societ}^ of Naturalists, and in 1898 he received the honorary 

 degree of" Doctor of Laws " from Brown Universit3^ 



From his college da3^s until the end of his life Professor H3^att was an 

 active investigator. His researches were confined to certain orders of 

 the Invertebrata, and all dealt in some degree with the problem of evo- 

 lution. To elucidate these problems he used largely the shells of ceph- 

 alopod molluscs. He made a special and prolonged stud3^ of the fossil 

 cephalopods, and came to be recognized as the leading authorit3^ on that 

 class. These studies led him to the neo-Lamarckian school of thought, 



