PHYSIOLOGY, AND PATHOLOGY OP THE CHIMPANZEE. 429 



EXPLANATION OF THE PLATES. 



PlATE I. 



Fig. A. The external ear. 



B. The auricular cartilage. 



C. The external generative organs. Letters in text. 



Plate II. 



Fig. A. The tui-binate region. Letters in text. 



B. The antrum of Highmore. Description in text. 



Plate III. 

 Fig. A. The hair shaft. 

 Figs. B & C. Sections through the skin and the root of a hair. 



