Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 220
bedrawn like the copy. (See Fig. 82.) 211. Sheet No. 19, Plate No. 45.—This sheet is an exercisefor practice in line shading, an operation for which the followinggeneral rules may be found useful: 1. A surface which is parallel to the plane of projection andin the light is uniformly covered with… … 202 MECHANICAL DRAWING. PLATE No. 42. i u<3 ^ •DCHI tu 3 1 bZ .0 h o 10 1 cr u 1-z DO O tru hz: D 0O id Z ru< a co 10.1 ID 73 e c a v ■£ C QJ O c E 2 Q) 0 * v. T3 IIS •> c c: llo; a; E o 73 -letOJ c:0 JC OJ o r (U jy «o OJ (D- O en n c * c .c b.b P i£ o CD o> c c O qj — o S.\o .1…
Mechanical drawing
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-401-224.webp)
