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King Country Chronicle, Volume V, Issue 325, 4 January 1911, Page 6

A single horse-power is a force sufiiricnt to raise 33,000 lb. 0112 1 ot high in one minute, or lib. 33,000 ft. vertically in one minute. It is interesting to know just what horsepower a horse of certain weight ma}' be expected to develop as he performs the work 0:1 the. onliinry farm. For continuous work, h—ar after hour, drawing the plough is about as tiring to horses as any operation on the farm, so this may be taken as an example of the power required of the animal*. A I'.in. furrow, Gin. deep, requires a steady pull of more than -125rb, to turn it over on stubble la ml. With a draught as luavy as this, a team 11: or in;: at the. rate of two and onehalf miles per hour will develop more than three horsc-po.ver. Energy developed by a horse weighing I.GOOIb. moving continually at the rate of two and '-one-half miles per hour, would equal 1" horse-power ; that of •1 1, hK! lb. horse, 1.17 horse-power ; a 1,200ib. hcrse, 1 liorse-power ; a 1,000 h. horse, .S3 horse-power ; an SOOib. iorse, .C 7 horse-power.