ARBOREAL LIFE 



EVOLUTION OF THE HUMAN EYE 



A Revised Publication of the 



BOWMAN LECTURE 



Delivered before the Ophthalmological Society of the 

 United Kingdom in May, 1921 



BY 



E. TREACHER COLLINS, F.R.C.S. 



CONSULTING SURGEON, ROYAL LONDON OPHTHALMIC HOSPITAL (mOORFIELDs) ; 

 CONSULTING OPHTHALMIC SURGEON, CHARING CROSS HOSPITAL 



WITH COLORED FRONTISPIECE AND 25 ILLUSTRATIONS 

 IN THE TEXT 



LEA & FEBIGER 



PHILADELPHIA AND NEW YORK 

 1922 



