J. LeConte on Binocular Vision. 175 
of convergence, i. e., for different distances of the point of sight. 
Theresultsofthese — - 15. 
calculations were 
not entirely satis- 
factory. I had ex- 
pected from Meiss- 
ner’s results that 
there would be 
found a progressive 
increase as the dis- 
ce decreased. 
But I could not be 
sure from my cal- 
inclination of the vertica 
