A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. $3 per Annum, [ Vol. XXIX.—No. 4. ] NEW YORK, JULY 26, 1873. IN A.DVANCS, [NEW SEKIES.] … THE BALTIMORE CONCENTRIC ROTARY ENGINE. THE BALTIMOBE CONCENTRIC KOTARY ENGINE. it is a matter of regret that the short period which has ting engine. Although having the merits of compactness elapsed since the completion of the invention, has precluded and lightness, and generally that of…
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