VI T A. 



The writer of tnis paper, George Lefevre, v/as born 

 in the city of Balti'nore, "Id., on Septe:nber 16th, 1869. 



He received his early education in private, schools 

 of Balti-nore, and in the fall of 1888, entered the Johns Hop- 

 kins University as an undergraduate student in the Chemical- 

 Biological Course. 



After taking the degree of Bachelor of Arts in the 

 same University, he began grad.iate studies in tne Biological 

 Department, making Zoology his principal subject, and Animal 

 Physiology and Botany his first and second subordinate sub- 

 jects, respectively. 



In 1892-93, he was assistant in Histology, and the 

 same year held the University Scholarsnip in Biology. 



In 1893-4, he v/as again assistant in Histology; 

 ir June, 1894, he v/as appointed Fellow in Zoology, and in 

 June, 1895, received the Bruce Fellowship. 



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