i Jt W* ^S M THE ADVOCATE OF INDUSTRY, AND JOURNAL OP SCIENTIFIC, MECHANICAL AND OTHER IMPROVEMENTS. [NUMBER 49. VOLUME 6.] NEW-YORK, AUGUST 23, 1851. IMPROVEMENT IN CARRIAGE SPRINGS. Scientific American, CIRCULATION 16,00(1. … advocating a new railroad between this city and Boston on a more direct route than those portion, A, of the semi-eliptic spring. D is The accompanying engraving represents an versal republican nobility—all the sovereigns, which now connect the two cities. The pre- a loop attached to the C spring…
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