The young folk's cyclopædia of games and sports ; (1899)
Champlin, John Denison, 1834-1915, Bostwick, Arthur Elmore, 1860-1942, joint author · New York, H. Holt and company · leaf 134
pin about A to enlarge the hole a a little. Remove one end of the cover, and in the corresponding edge of the box cut a notch just large enough to see through into the box when the cover is on. On a sunny day, hold the box with the pinhole toward any bright object and look down into the end through… … Fig. I. ily distinguished. The picture willgrow clearer as the eye becomesaccustomed to the light. By movingthe box so that the pinhole turns ina different direction, the picture willchange. The smaller the pinholeis, the less blurred the picture willbe, but it will be also less bright.With a hole…
Games · Sports · Card games
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