Recent McGraw-Hill Publications 

 in the Biological Sciences 



Series in Population Biology 



Ehrlich and Holm The Process of Evolution 



Series in Organism Biology 



Mazia and Tyler The General Physiology of Cell Specialization 



This symbol of the cephalopod Nautilus appears on all McGraw-Hill 

 Publications in the Biological Sciences. It was chosen to represent the 

 just proportion of living structures and to suggest the harmonious workings 

 and balanced arrangement of the parts and elements of living things. 

 The color of the binding represents the Biological Series in which 

 this book is published. 



