TABLE OF CONTENTS. 



LECTURES OF THE POPULAR LECTURE COURSE OF 



1885-1886. 



(Without Abstracts.) 



GEORGE F. BARKER. 



PAGE 



Radiant Matter (March 8, 1886) 178 



JOHN S. BILLINGS. 



The Uses and Dangers of Micro-Organisms (February 8, 1886) 153 



EDWARD D. COPE, 



The Genealogy of the Mammalia (December 14, 1885) 89 



EDWARD S. MORSE. 



Prehistoric Man in America (January 11, 1886) 130 



