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Scientific American, Vol. 52, No. 15 (April 1885) (1885)

leaf 4

An illustration from Scientific American, Vol. 52, No. 15 (April 1885), 1885, leaf 4
EJ.L, li.A. Sir Christopher Wren reflected that the hollow spire gravity being only 15; and it is of a fine white color, by means of drawing pins (Fig. 1, No. 2). This screen which he had seen or built in so many varieties was, which will make it sought for many architectural effects should be… … Fig. 2.-BEAVER HAT CONVERTED INTO A the same idea. frame.—La Nature. PHOTOGRAPHIC CAMERA. Fig. 3.-MODE OF USING THE APPARATUS, © 1885 SCIENTIFIC AMERICAN, INC

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