$3 per Annum, Vol, XXIX.==No. 4. ] NEW YORK, JULY 26, 1873. IN ADVANCE. (NEW SERIES.] … THE BALTIMORE CONCENTRIC ROTARY 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 cheapness, which ren- It is hardly necessary, at…
Internet Archive · Public domain (published before 1931). Free to use for anything.
