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Show 682 DR. WALTER KIDD ON THE [Julie 19, axis of the body than those animals with pointed snouts. To such a rule there must be many exceptions, but a rule it is. The fore-end of animals is necessarily subjected to numerous forces in the course of their wild life, and it seems a fair inference to draw, that the differences of " set " of hair on this prominent region are determined by different factors, such as the prevailing attitude of the head, habits, and environments. The hair-slope must break or " part" somewhere in the frontal or nasal region, and it may need but little in tbe way of difference in the angle Of incidence of wind, tropical rain, pressure against undergrowth, burrowing in the ground, rooting in swamps or marshy ground, aud, finally, method of cleaning the fur, to determine that point at which a whorl shall be established, and inherited in the course of many generations. These are no more than suggestions to account for some singular divergences in a very insignificant character, which have come about by some means or other, and they agree, in their way, with the suggested reason for tbe peculiar hair-slope on the extensor surface of the forearm of Man, certain Monkeys, and Carnivores. There is some support for this view in the striking whorl with divergence of colour, so generally seen over the tuberosities of tbe ischia of short-haired Dogs, and the bare spots and callosities on the corresponding parts of many Monkeys, for both of these forms of animals are notoriously fond of sitting on their haunches. Another "abnormality " of set of hair for which one can see no explanation, is that strange slope towards the cephalic end, which is seen on the middle line of tbe dorsal region of some Antelopes. This may even start from a whorl over the sacral region, and pass thence right up to the horns, as in Orgx beisa, or from a whorl in the mid-dorsal region, as in Cobus ellipsiprymnus. In cases such as these, it may be that a fuller knowledge of the habits of such animals would provide a reason for so strange a departure* APPENDIX. I have ventured to make a short addition to this paper containing some notes illustrated by two diagrams, which, I think, lead to similar conclusions. They represent three regions of the domesticated Horse, an animal especially useful for investigation on account of the great numbers of individuals open to our inspection, and because it is an animal whose business in life is to w7alk, trot, canter, or gallop, and since it has been domesticated by man it has probably led, more than any other animal, a locomotive life. Three regions of the Horse's body are illustrated :- A. Inguinal.-Here is exhibited the well-known whorl from which a " feathering" starts, at the edge of the skin-fold of this region, opposite to the level of the patella, extending up the hollow of the flank, with a feather-shaped arrangement of the hair, to the level of tbe crest of the ilium, where it terminates, sharply |