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Scientific American, Vol. 63, No. 7 (1890) (1890)
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nch in a foot; lead, the 100,000. placed on the columns by means of a steam derrick on The larger portion of Prof. Lintner’s specimen collec- same; copper, three-sixteenths of an inch ina foot; top of structure, and bolted securely to a plate on top tion from one light consisted of winute gnats,… … © 1890 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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