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Scientific American, Vol. 81, No. 23 (December 1899) (1899)

leaf 7

An illustration from Scientific American, Vol. 81, No. 23 (December 1899), 1899, leaf 7
obtain a sort latter. The bubbles of phos- of bottomless box. The walls phureted hydrogen accumu- are of paper or of some light late beneath the sawdust in fabric. To make the matter forming one very large bub- plain, let us conceive of a cell ble, which finally lifts the of square section. This… … Fig. 5.—PREPARATION OF NITROGEN. Fig. 4.—RINGS PRODUCED BY PHOSPHURETED Fig. 3.—WRITING UPON WATER WITH HYDROGEN. HYDROSULPHURIC ACID. © 1899 SCIENTIFIC AMERICAN, INC.

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