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Scientific American, Vol. 63, No. 11 (September 1890) (1890)

leaf 3

An illustration from Scientific American, Vol. 63, No. 11 (September 1890), 1890, leaf 3
ered a day's work for all labor- and adapted to hold a small piece of sponge, the casing ers, workmen, and mechanics, now or being preferably a rubber net-work, and formed with hereafter to be employed by the gov- a neck adapted to be engaged by the end of a pencil. ernment. The sponge is thus… … the nation and its in- INGLIS' ARTIFICIAL WATER SLIDE FOR PLEASURE RESORTS. HUDSON'S SLATE SPONGE. © 1890 SCIENTIFIC AMERICAN, INC.

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