VITA. 



The writer of the foregoing dissertation, Edward William Berger, 

 was born in Middleburg Township, near Berea, Ohio, on November 

 29, 1869. He is the youngest son born to Karl Gottlob Berger and 

 Christiane Pauline, daughter of Karl Gottlieb Gellrich, who, leaving 

 their home in Silesia, of southeastern Prussia, in 1854, came to make 

 America their adopted country. 



The writer's preliminary education was received in the public 

 schools of Lorain, Ohio. In 1886 he entered German Wallace College, 

 of Berea, Ohio, from which institution he graduated in 1891. In 

 1892 he entered Baldwin University, also at Berea, and graduated 

 in 1894. In the fall of the same year he entered Johns Hopkins 

 University, taking up special studies in Zoology, Physiology, Botany 

 and Chemistry. 



Two months of the summer of 1897 were spent in Jamaica with 

 the Johns Hopkins Marine Laboratory, and two months, in 1898, at 

 the United States Fish Commission Laboratory, Wood's Holl, Mass. 

 The writer has twice held a University Scholarship. 



BIOLOGICAL LABORATORY, 



JOHNS HOPKINS UNIVERSITY, May, 1899. 



