MODERN PROBLEMS OF BIOLOGY 



LECTURES DELIVERED AT THE UNIVERSITY OF JENA, 

 DECEMBER, 1912 



BY 



CHARLES SEDGWICK MINOT 



LL. D., YALE TORONTO AND ST. ANDREWS; D. SC., OXFORD; DIRECTOR 

 OF THE ANATOMICAL LABORATORIES, HARVARD MEDICAL 

 SCHOOL; EXCHANGE PROFESSOR. AT THE UNIVER- 

 SITIES OF BERLIN AND JENA, IQI2-I3. 



WITH FIFTY-THREE ILLUSTRATIONS 



PHILADELPHIA 

 P. BLAKISTON'S SON & CO. 



1012 WALNUT STREET 

 1913 



