S. Rowley on Vision. 165 
distance in the surface from the image at A of the object at 
A, as 2,4; inches, 
Again, the effect of experience in regarding directly the im- 
ages of the object at A will be a habit whereby, when the axes 
are directed to the images of the object at B, the mind will be 
led to mistake 2,4, inches—the distance - in the surface of the 
left eye’s image at T’ of the object at A to the right of its im- 
? 
and 2,4; inches—the distance in the surface of the right eye’s 
image at T of the object at A to the left of its image at B of 
the object at B—for ,*, inch, and 18 inches—the distance of 
surface of vision from the base for 6 inches. 
Thus since the more remote parts of a solid object will seem 
tobe seen at equally more remote distances in the image, and 
the entire image at a distance equal to that of the object, the 
image will seem to be seen with the same form and magnitude 
any slight discrepancy between these images and those pro- 
ore by one and the same object will not prevent an acceptance 
ae Sows, and, since all the equivalent single objects 
~, mind with respect to any images to locate the surfaces of 
oo at a greater or less distance from the base of vision than 
true. Hence all the images will be apprehended in their 
true visible Places. But if the interval between any two ob- 
age of such a series should differ from the other intervals, then 
Ettvo (or the four images presented) which are accepted 
Barts of two complex 
= Dameed inattention to, or neglect of, one of them. 
