xc 



BOWMAN LECTUIJE. 



and the pedigrees I have chosen for illustrating the 

 heredity of senile cataract to-day (Figs. 18 to 25), all 

 illustrate this phenomenon in a greater or less degree. 



fUl 

 ttfil* f 



*r f 4. 70 ?/ f 



T7T 



It is impossible to make the family record as full in 

 hereditary senile cataract as in the congenital forms ; 

 the older members are scattered and may die with 

 incipient cataract undetected. But we already know 

 enough to say that senile, pre-senile and juvenile 



