Freehand perspective and sketching; principles and methods of expression in the pictorial representation of common objects, interiors, buildings and landscapes (1916)
Norton, Dora Miriam · Brooklyn : The author · leaf 57
that place on the eye level (this can be doneby noting a point behind it on the wall), andlet the book drop slowly. Keep it exactlyhorizontal, and let the string slip through thestationary thumb and finger, so that their meet-ing point remains at the eye level. If this is carefully done, itwill be… … Fig. 57 STRAIGHT-LINE OBJECTS These experiments should also be tried with the lowercover, holding the book above the eye (Fig. 58), and raising andlowering it. From the foregoing study it is easily perceived that, providedwe Jceej) the book horizontal, the point toward ivhich its ends appear…
Drawing · Perspective
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