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SCIENTIFIC AMERICAN
A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE,MECHANICS, CHEMISTRY, AND MANUFACTURES.
NEW YORK, July 14, 1877.
Vol. XXXVII.—No. 2. [NEW SERIES.]
$3.20 per Annum [POSTAGE PREPAID.]
Contents:
(Illustrated articles are marked with anasterisk.)