“J. Le Conte—Phenomena of Binocular Vision. 89 
to the right, for in this case the vertical lines of the wall do not coin- 
cerde with a projection, on the wall, of a perpendicular to the plane 
of regard. The latter would, on the contrary, appear turned in the 
same direction as the image, and at an angle much greater than that 
of the image.”’* 
+ Ibid, p. 605. 
