THE 
AMERICAN 
JOURNAL OF SCIENCE AND ARTS, 
[THIRD SERIES.] 
Art. XXXIX.—On some Phenomena of Binocular Vision; by 
JosepH LEConTE, Prof. Geol. and Nat. Hist., University of 
California.* 
VL. So-called “images of illusion ;? and the theory of binoewar 
relicf, ; 
In a very elaborate paper on binocular vision published in 
the Archives des Sciences+ for Feb., 1871, which is itself but a 
succinct resumé of a much more extended memoir soon to be 
the former theory by showing, first, a priori, the consequences 
u of this theory; second, 
- that the visual results of certain experiments are precisely what 
_ % priory reasoning leads us to expect; and third, that this theory, 
in the form in which he maintains it, explains all the more ob- 
P. 33, and vol. ii, nae 
‘f Arch. des Scien., nouv. per tome xl, p. 105. 
_ AM. Joun. Sot—Tamrp Serres, VoL. II, No. 11.—Nov., 1871. 
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