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Show Paved Highways Causing Fresh Demand for Horses Paved highways from farm to market mar-ket are bringing about economy in transportation even where horses are used to haul grain, live stock, fruit, and other products to marketing centers. cen-ters. One of the best arguments for hard-surfaced roads came out of a series se-ries of tests made at Ames, la., re-cently. re-cently. The experiments were made to determine the pulling power of horses of various sizes. A testing ap-. ap-. paratus invented by O. V. Collins of the engineering department, Iowa. State coIlegewa8 used. These tests, coEfCucted by the Horse Association of America, showed that a horse has to pull four times as much on a dirt road as he does on concrete. con-crete. A single horse drawing a wagon on concrete can pull as much as four horses burdened with heavy loads on the average dirt road that is still entirely en-tirely too common in this country. |