[Clarke, William], 1800-1838 · Boston, Munroe and Francis · leaf 127
ing a sort of coni-cal funnel, D, and whose opening at the end next the light is not moretlian three or four tenths of an inch in diameter. Draw the subject you would represent on a piece of glass of equal heightwith the space, M F, with a very light stroke, and with any color that isquite opacjue.… … 124 OPTICAL AMUSEMENTS. iigliten the surface of your paper, and there show, in a distorted form, thesubject that is painted on the glass. Then draw, with a pencil, all the strokesof the shadow as they appear, and, taking awaythe light, replace the upright side-piece, I, andsee if what you have…
Sports · Amusements
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