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Scientific American, Vol. 100, No. 12 (March 1909) (1909)

leaf 11

An illustration from Scientific American, Vol. 100, No. 12 (March 1909), 1909, leaf 11
OUILLKT. board, understrip, and roof section. This fastening 16 feet; base and rear plate, 2 7 Not long ago the writer was called upon to replace adds much to the strength of the roof. Finish boards inches by 16 feet, 1 2%< inches by a broken spring in a machine. It had to be done at of the… … When iodine is added to a starch solution, or vice HOME-HADE SPRING WINDER. building. This coat should be of white lead and oil, versa, the solution is colored blue. This is a well- possibly shaded with lampblack ground in oil, and known test for either free iodine or starch. The supply of springs…

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