815 Fifteen Copies for Twelve Months 822 Twenty Copies for Twelve Months 828 For all clubs of Twenty and over the yearly sub scription is only $1 40. Specimen copies will be oen gratis to any part of the country. MUNN & CO. Publishers and Patent Agents No. 128 Fulton street New York. VAN LOAN'S IMPROVED PLOW. DENNIS' SHOVEL PLOW. Ti9. 7 1858 SCIENTIFIC AMRICAN INC., scientific american, 1858-04-17
815 Fifteen Copies for Twelve Months 822 Twenty Copies for Twelve Months 828 For all clubs of Twenty and over the yearly sub scription is only $1 40. Specimen copies will be oen gratis to any part of the country. MUNN & CO. Publishers and Patent Agents No. 128 Fulton street New York. VAN LOAN'S IMPROVED PLOW. DENNIS' SHOVEL PLOW. Ti9. 7 1858 SCIENTIFIC AMRICAN INC., scientific american, 1858-04-17
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