856 GEORGE JARVIS BRUSH. 



terminative mineralogy. He made many contributions to the System 

 of Mineralogy by James D. Dana. Of the ten supplements to the 

 fourth edition he prepared the eighth, ninth and tenth. He rendered 

 most important assistance to Professor Dana in the preparation of the 

 fifth edition of this great work, and the first appendix to the last 

 edition was written by him. 



He was also associate editor of the American Journal of Science 

 from 1863 to 1879. 



The mineral collection which was gotten together by Professor 

 Brush during his long life is one of the most representative and best 

 known collections in the world. It was finally given by him- to the 

 Sheffield Scientific School with an endowment for its upkeep and 

 extension. 



Although widely known as a mineralogist, and as a successful 

 teacher, his greatest services to mankind were rendered in connection 

 with his directorship of the Sheffield Scientific School, whose develop- 

 ment may quite properly be called his life work. Professor Brush is 

 to be counted among the stnall number of men who foresaw with an 

 almost prophetic vision the great importance which scientific training, 

 a side of education to which little enough attention was paid at the 

 time when he was a young man, must have in the development of the 

 country's industrial growth. He graduated from Yale at a time 

 when science was little esteemed, particularly in its relations to every- 

 day affairs. Education was largely along classical lines. He re- 

 sumed his connection with the scientific department of Yale when it 

 was still a very small and weak affair. It needed wise nursing and 

 financial help. He was a great addition to its small group of able and 

 self-sacrificing teachers, bringing to it, as he did, not only his native 

 ability as a teacher, his personal enthusiasm, but also the exceptional 

 training and experiences he had acquired in Europe. He also pos- 

 sessed, fortunately for the school, a practical knowledge of business 

 methods and great administrative ability. In addition, he possessed 

 to a rare degree that charm of manner, which won the friendship and 

 confidence of all, not only for himself but for the great enterprise with 

 which he was connected. Of vital importance to the growth of the 

 school was adequate financial support. This he was extraordinarily 

 successful in getting and to his wise and skilful handling of the funds 

 given to the school, largely through his efforts, its success and phe- 

 nomenal growth were in no small measure due. The esteem that his 

 business ability was held in, is testified to by the fact that he was for 

 many years a director of the Jackson Iron Company, of Lake Superior, 



