International Correspondence Schools · Scranton, The Colliery engineer company · leaf 56
e design. 89. Reflected Light.—In the sha-ding of ribbons or any rounded object, thereoccurs what is called the reflected light.It shows the edge or line which, withoutthe observance of this principle, wouldotherwise be lost where the darkest shadedparts conie together. Fig. 49 shows this principle… … Fic. -JO. PAXET^S. 90. Heetangiilar Panels.—The panel has more formstlian tlie ril^bon, and is made to serve many puri)Oses. The
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