Excerpt from Illustrated Catalogue: Plows, Agricultural Implements, and Machines, Manufactured and Sold by Ames Plow Company, (Successors of Nourse, Mason, and Co.); Warehouses Quincy Hall, Boston, 53 Beekman St., New York; Factories Worcester and Ayer, Mass Since that time various improvements have been made, some of marked importance and others rather suggestive; among the former is that for which a patent was granted to Samuel A. Knox, of Worcester, Mass, by which the construction of the mould-board is strictly geometrical, and it probably works with as little resistance as any plow ever made. This mode of construction admits of all the variations necessary to produce long or short mould-boards, with straight lines forming concave or convex sur faces as required for different soils or kinds of work. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.