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Scientific American, Vol. 74, No. 20 (May 1896) (1896)

leaf 3

An illustration from Scientific American, Vol. 74, No. 20 (May 1896), 1896, leaf 3
the lower section, Michallet's crayon paper (cream tint) gives fine reds by merely fixing without washing. Whatman's draw- springs uniting the arms of the respective sections, while side springs connected at one end near the center ing paper will yield similar red tints if treated with of one… … An acid sensitizing solution may be employed, add- RAUBOLD'S ICE SHAVER AND MILE SHAEER, ing one drop per ounce of nitric acid instead of the DAVYS SPRING SEAT. ammonia, or a proportion of citric acid if desired. The the crosshead carrying saucers to receive the glasses, latter addition greatly…

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