A WEEKLY JOURNAL OF PRACTICAL INFORMATION IN ART, SCIENCE, MECHANICS, CHEMISTRY AND MANUFACTURES, VOL. 1X.—NO. 15. } NEW YORK, OCTOBER 10, 1863. {ss Pam anxowew abvance. (NEW SERIES.) Improved Saw-mill. from, or advance toward each other at the same | uprights, and by this means they are prevented…
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