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Scientific American, Vol. 58, No. 12 (1888) (1888)
leaf 7
e lower southern polarity. if required by unlocking the eccentric and giving it When the ship heels over, the lower part of the quad- a slight turn until the plate is perfectly level, and * Abstract of paper read before the Philosophical Society of Glasgow, rantal corrector on the upper side of the… … © 1888 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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