J. LeConte on Binocular Vision, 425 
“ 
whether the images are real or illusive, or whether one be real 
. . . 
a side the point of sight, are doubled, but differently, the 
genitally or become so by experience, I quite agree with Don- 
ders, that there is truth in both views. In a letter to Prof 
Tyndall, published in the Phil. Mag. for April, 1871, referring 
to the question whether the “Jaw of direction” was native or 
acquired, I have said that instinct is nothing but “ inherited 
experience.”+ Precisely the same remark applies to the law o 
Corresponding points, Jt is acquired by the experience of succes- 
sive g y 
1S greater in the lower animals, the individual experience is 
‘ater in man. Binocular si i 
_ * This Jour., II, vol. ii, p. 1 et seq. 
mh fil not en sen th similar view of Hering vit, that instinct is * inherited 
