ds in the one case, By means of the accompanying diagram Fig. 1, we intend to show, according to the rules of mathematics and irrespec- and B p' to be 120 pounds in the other case. Now, to com- tive of the convenience to the animal, that the yoke is at- pare our figures, we have: tached by the head… … The diagram represents a well proportioned animal in pos- pounds, it will be able, by yoking at the head, to push ition to work or push a load along. W represents the place along, with the effective power of 1,200 pounds, eleven per of the whiffle-tree to which the draft straps are attached ; A,…
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