s 



THE ESSENTIALS 



OF 



DESCRIPTIVE AND PRACTICAL 



FOR THE USE OF STUDENTS 



BY 



(E. A. SCHAFEK, F.E.S. 



JODUELL PROFESSOR OF PHYSIOLOGY IN UNIVERSITY COLLEGE, LONDON 

 EDITOR OF THE HISTOLOGICAL PORTION OF QUAIN'8 'ANATOMY* 



LONDON 

 LONGMANS, GEEEN, AND CO, 



1885 



All rights reserved 



