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Scientific American, Vol. 56, No. 13 (1887) (1887)
leaf 7
a curious way, A few drops of a solution cam- combustion and a white light. The reservoir of the until all of the air is expelled, and a thin film of vaseline phor in benzole, dropped on the water, yield very lamp, as well as the objective tube and lantern chim- remains. The glasses are then… … © 1887 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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