Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 199
the rectangular outline and copy the lines of theplate, using the small irregular curve as is suggested by the dottedlines; the curve at the top, representing a broken end, is drawnfree-hand. When the figure is accurately drawn in pencil, inkin the drawing by inking the curved lines first; to do… … Fig. 72. Fig. 2 illustrates two methods of drawing ellipses when theaxes are at right angles. First method: Locate the center linesand draw the two circles; divide the large circle into twenty-fourequal parts (this can be done by means of the T-square and bothtriangles) and draw a radial line to…
Mechanical drawing
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