Scientific American June 30, 1855
(Item: SAMER10)
SCIENTIFIC AMERICAN, The Advocate Of Industry, And Jourmal Of Scientific, Mechanical, and Other Improvements. Volume X, New York June 30, 1855, Number 42. Featuring Articles and Engravings of, Improvement In Galvanic Batteries, Fig.1,2, Page329, Improved Valve For Steam Engines, Fig.1,2,3, Page 329, New Ballast Trimming For Steamboats, Fig.1,2, Page 332, Auger and Bit Fastening, Fig.1,2,3, Page 336.
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