86 W. B. Rogers on Binocular Vision. 
Art. X.—Observations on Binocular Vision; by Prof. Wu 
Liam GB. Rocers. 
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among the most important contributions ever made to the science 
of physiological optics. Nor has the knowledge ofthese beauti- 
_ ful and curious results been confined to the circle of scientific in- 
_quirers. The diffusive intelligence of the age has converted the 
stereoscope into a,popular source of instractive recreation. But — 
much as has beeline, especially by Wheatstone and Brewster, 
towards forming a true theory of binocular vision, it must be ap- 
* 
ing and varying the exper 
conclusions previously made kno’ 
subject. It will be seen that the m 
I have fallen are in some respects new, a 
this process in all respects satisfactory may require further obser¥- 
ations and greater subtlety of metaphysical interpretation, but I 
trust that the facts and conclusions which I have to present W! 
throw light on some obscure points of the subject and will pel 
haps disclose features’ of it which have not hitherto been noticed. 
PART FIRST. 
1. On the place in which we perceive objects that are binocu- 
larly combined. 
The learned Dr. Smith of Cambridge, in his “Complete Sys 
