A COURSE IN 



7 



A GUIDE TO THE DISSECTION AND COMPARATIVE 

 STUDY OF INVERTEBRATE ANIMALS 



BY 



HENRY SHERRING PRATT, PH.D. 



Professor of Biology at Haverford College and Instructor in Comparative Anatomy 



at the Marine Biological Laboratory of the Brooklyn Institute of 



Arts and Sciences at Cold Spring Harbor, L.I. 



BOSTON, U.S.A., AND LONDON 

 GINN & COMPANY, PUBLISHEES 



Cbr 3t!)rn<Tum 

 1902 



