THE NEW EFFICIENCY Plowing, Seeding and Harrowing at One Operation Behind a Power Tractor Fed by Kerosene THE NEW AGRICULTURE HOW THE FARM IS TO BECOME A WORKSHOP IN METHODS. EQUIPMENT AND PRODUCTIVITY By Edward A. Rumely The following article, dealing broadly with the general problem of the…
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
