DEVELOPMENT AND ANATOMY 



OF THE 



NASAL ACCESSORY 

 SINUSES 



IN MAN 



Observations Based on Two Hundred and 

 Ninety Lateral Nasal Walls, Showing the 

 Various Stages and Types of Development of 

 the Accessory Sinus Areas from the Sixtieth 

 Day of Fetal Life to Advanced Maturity 



BY 

 WARREN B. DAVIS, M.D. 



CORINNA BORDEN KEEN RESEARCH FELLOW OF JEFFERSON 

 MEDICAL COLLEGE ; ASSISTANT DEMONSTRATOR OF ANATOMY 

 IN THE DANIEL BAUGH INSTITUTE OF ANATOMY, PHILADELPHIA 



From the Laboratories of the Friedrichshain Krankenhaus, Berlin, 

 Germany, and the Daniel Baugh Institute of Anatomy, Philadelphia 



DRAWINGS BY DOROTHY PETERS 



PHILADELPHIA AND LONDON 



W. B. SAUNDERS COMPANY 



1914 



'ft 



