sllO^ o^Q? *w^^^*p^^^ mmam mmUBm "CT<JP5L>->3- isr<5^~ A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. $3 per Annum Vol, XXIII.—No. 4. NEW YORK, JULY 23, 1870. [IN ADVANCE.] [NEW SERIES.]
Patents · Iron · Color · Consists · Manufacture · Scientific American · Wrought iron · Natural science · Patent office · Blue color · Gun cotton · Best design · City hall · Jethro wood · Fire alarm
Internet Archive · Public domain (published before 1931). Free to use for anything.
