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 undeniable proof of a state of transmitted equilibrium imposed upon the animal by the man.

The demonstration is still more striking when the horse is mounted. I weigh, dressed, 172 pounds, a total weight of 1187. Letting the reins lie loose, I find that the scales read 722 and 565 pounds. I take the reins, flex the horse's head and neck to bring the animal "in hand," and at the same time, by the contact of my legs, I bring the animal's hind legs into the perpendicular position. The scales now read, in front 598, behind 589, a difference of only nine pounds. In this particular case, the horse had become pretty nervous from having his feet on the unsteady scale platforms; and in order to keep him quiet, I had been neglecting my own position, and leaning slightly forward, for the sake of loading the fore legs and keeping them still. As soon as I rectified this, and sat with head and body erect, the forward scales read steadily 593, while the other oscillated between 592 and 594 with the action of my legs in trying to keep the horse perfectly quiet. It was a convincing demonstration. Moreover, by leaning forward or backward with the head very erect, I could always take thirty-five or forty pounds from the reading of either scales and add it to the other.

For the benefit of any person who wishes to repeat these tests, I add certain practical suggestions from my own experience. I find that one of the great difficulties is to keep the horse calm and