Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 21
nt of sight being at an infinitedistance, the lines of sight are practically parallel and are so * The point of sight is that point, imaginary or real, from which an object isviewed; we see with two eyes, but only one point of sight is assumed. f A line of sight is an imaginary straight line… … DRAWING ^T SHOWING THE POINT OF 5IGHT AT A FINITE DISTANCE X V% buildings, etc., are examples of this class of drawing, and this isthe kind of drawing with which engineers are concerned.
Mechanical drawing
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