26 The Academy of Natural Sciences 



the minerals to be selected by his brother. He also left $1,000 to 

 provide additional cases and $10,000, of which the income was to be 

 expended for the care and increase of the collections. 



The will provided for the appointment of a special Curator 

 and under its terms Mr. Jacob Binder assumed the duty of remov- 

 ing, arranging and increasing the collections, declining the com- 

 pensation which the Council was empowered to define. He had 

 been elected Curator in 1882, to fill the vacancy caused by the 

 death of Dr. E. S. Kenderdine. To fit himself for his duties as 

 Vaux Curator he attended courses of lectures on mineralogy at the 

 University of Pennsylvania under Dr. Koenig, the result being 

 apparent in the satisfactory arrangement of the collection according 

 to the system of Dana. He served as Curator until 1892, when 

 failing health forced him to decline a re-election. Dr. Joseph T. 

 Eothrock then held the office for one year, and was succeeded by 

 Arthur Erwin Brown, who has since served continuously. 



Dr. Euschenberger declined a renomination for the Presi- 

 dency in 1882, and Dr. Leidy, having been at last persuaded to 

 become a candidate, his fellow-members evinced their affectionate 

 gratitude by conferring on him the highest office within their gift, 

 an honor which he had repeatedly declined. He still continued to 

 act as Chairman of the Curators, the Library Committee and the 

 Publication Committee, all of which profited by his guidance and 

 advice until his death on April 30, 1891. 



Custody of the collections of the State Geological Survey was 

 confided to the Academy by Act of the Legislature in 1883. 



On his retirement from the Presidency, Dr. Euschenberger 

 was elected one of the four Curators, thus becoming, of course, 

 an ex-officio member of the Council, where he continued his 

 services during the rest of his life. His well-earned leisure after 

 his retirement from active duty in the navy was occupied in constant 

 supervision of the building operations, in the revision of his 

 Notices, in the preparation of annual reports during his term of 

 service as President, and in convincing support of the Academy's 

 claims to consideration by means of frequent newspaper articles. 

 He died March 24, 1895. 24 



24 A Biographical Notice of W. .S. W. Ruschenberger, by Edward J. 

 Nolan, M.D. Proceedings Academy Natural Sciences of Philadelphia, 1895, 

 pp. 452-462. 



