. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . the feet are heard; inthe canter or slow gallop four, in the ordinary gallop as the one or other hind-leg is extended farthestbehind the body the gallop is termed right-handed or left-handed. 624 COMPARATIVE PHYSIOLOGY. In the fastest gallop the length of stride may amount to sixto seven metres, and the speed to twelve to fifteen metres persecond. In such a rapid gait the contact of the one hind footproduces a sound lengthened by the rapid impact of the fellow-foot. The
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . the feet are heard; inthe canter or slow gallop four, in the ordinary gallop as the one or other hind-leg is extended farthestbehind the body the gallop is termed right-handed or left-handed. 624 COMPARATIVE PHYSIOLOGY. In the fastest gallop the length of stride may amount to sixto seven metres, and the speed to twelve to fifteen metres persecond. In such a rapid gait the contact of the one hind footproduces a sound lengthened by the rapid impact of the fellow-foot. The same applies to the fore-feet, hence only two sounds,while in the other varieties of this gait the interval between theimpacts is sufficient to allow of three, or it may be four sounds. The accompanying plate, constructed by the help of instan-taneous photography, illustrates the different positions of ahorse in the gallop. Sloping shoulder-blades and well-bent stifle-joints are gener-ally recognized as of great importance to an animal intendedfor high speed, and these are commonly to be met with in the. Fig. 474.—Various positions in the trot (Colin) fleetest of horses, dogs, and other quadrupeds (Fig. 452). Itmay be seen that such an arrangement permits of a length-ened stride being taken with ease, tends to reduce concussion,and adds to beauty of form. To this must, in part at all events,be attributed the grace of form and fleetness of the race-horseand the greyhound, not to mention wild animals. A horse for heavy-draught purposes requires great muscularpower, which in turn implies a strongly developed osseous sys-tem; and in order that this may be attained some of thoseprinciples on which speed depends must be subordinated tothose involved in strength. As is well known, the cart-horseand race-horse, the mastiff and the greyhound, are opposites inbuild and capacity for speed. However, between these extremeforms there are many others of an intermediate character, asthe hun
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