Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 57
ing the spacing and pro-portioning with the eye. 61. Mechanical Letters.—Plate No. 4 delineates the usualmechanical letters—letters made with instruments. The plainblock letter (that shown in the top row) is the style most usedand is the basis for nearly all plain and ornamental… … CHAPTER III. PROJECTION. 62. Scenographic Projection.—To project means to plan, toscheme, to delineate, to draw the outline of a thing. In Fig. i,explanatory of the drawing of objects viewed from a finite dis-tance, the lines joining the several points of the object and thepoint of sight—there…
Mechanical drawing
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