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Scientific American, Vol. 74, No. 6 (February 1896) (1896)

leaf 9

An illustration from Scientific American, Vol. 74, No. 6 (February 1896), 1896, leaf 9
uction three To remove ink stains from books—A small quantity is mounted eccentrically an electrode provided at its times as large as that of carbonic oxide gives ; that is outer end with a cross bar on which presses the head of oxalic acid, diluted with water, applied with a to say, 3 x 6-6 = 19-8… … Do not allow books to he very long in too warm a HEAD'S ELECTEIC IGNITES EOS GAS ENGINES. breathe this mixture presented a continual agitation place; gas affects them very much, Russia leather in and very ample respiratory movements. Eleven min- particular. on the end of the spring-pressed rod…

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