392 George Jarvis Brush. 



away — all this became by degrees a main work of Professor Brush's 

 life. His energy, his judgment, his executive capacity, and his 

 devotion soon gave him the leading direction in the affairs of the 

 institution. He was for a long period its secretary ; he has always 

 been its treasurer ; and when, in 1872, a more formal organization 

 of its faculty was felt to be desirable, he was elected as its presid- 

 ing officer, a position which he still retains. Others have done 

 their part toward developing various departments of the School, 

 but its growth, as a whole, the position which it has acquired 

 among scientific institutions, whatever that position may be, has 

 been due to him very much more than to any other one man con- 

 nected with it. . . ." 



In 1872, as above stated, Professor Brush was made director 

 of the Sheffield Scientific School, to which he had already 

 devoted fifteen years of his life. This position he held until 

 1898, when he resigned his active duties, both professorial and 

 administrative. His time and energies of necessity were, from 

 1872 on, more and more absorbed by the labor of planning for 

 the School as a whole and caring for its many interests. In 

 1873, Dr. George W. Hawes was appointed assistant in miner- 

 alogy, and much of the active work of teaching devolved upon 

 him ; thus in the later seventies, Professor Brush had practi- 

 cally resigned his laboratory instruction and finally, in 1884, he 

 was compelled to give up his lectures also. Dr. Hawes 

 remained in charge of the department until 1879, during which 

 time the classes in laborator}^ work were transferred to the Pea- 

 body Museum after its completion in 1876. In 1879, Dr. Hawes 

 was called to Washington and Dr. S. L. Penfield took his 

 place as instructor in mineralogy ; later the latter was made 

 assistant professor (1888), and finally professor of mineralogy 

 (1893) ; in his able hands Professor Brush felt that his favorite 

 subject was fully cared for, as was well proved by the work 

 that was published from the Sheffield laboratory of mineralogy. 

 It may well be imagined with what deep sorrow the elder Pro- 

 fessor saw each of his assistants and helpers cut down in their 

 prime, Hawes in 1882 and Penfield in 1906. 



In 1898, as has been stated, Brush resigned his active 

 responsibilities as professor and director. The remaining years 

 of his life were for the most part spent in .New Haven in close 

 touch with the same interests to which he had devoted his life. 

 He continued as secretary and treasurer of the Sheffield 

 Trustees until 1900, when he retired as secretary and was 

 elected President of the Board. He gave up the treasurership 

 in 1904, but retained the presidency until the end, presiding 

 at the annual meeting in November, 1911. 



During the period that has been alluded to, Brush took the 

 liveliest interest in all that pertained to mineralogy, the instruc- 

 tion, the active research, and the increase of his private collec- 



