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The skin consists principally of a layer of vascular tissue called the 

 derma, and an external covering called the cuticle. Within and below'the 

 derma are embedded the sweat glands, which excrete the perspiration,^the 

 sebaceous glands which secrete the oily fluid to lubricate the skin, and the 

 little depressions called hair follicles, in which the hairs are situated. The 

 hair and nails, strange as it may seem, are merely modifications of the 

 cuticle or epidermis. The upper surface of the derma is not level, but show s 

 a multitude of little elevations which are termed papilkv, in which the little 

 nerve endings terminate, thus endowing the skin with sensibility. On the 

 tips of the fingers of man and in other parts, which are endowed with 

 extra sensibility, the nerve fibres ending in the papilkc are more numerous 

 than elsewhere. Likewise, on the tip of the nose of the horse and in'"other 

 parts, they are more abundant. The papillae are about i *2ooth of an inch in 

 ength, and about r6ooth of an inch in width at the base. The cuticlejs a 

 thin layer covering the derma, and filling up the depressions between the 

 papillae. It is made up of little cells, which are being continually deposited 

 on the derma. 



In the above picture of a section of the skin of the horse A is the cuticlCj, 

 B is the derma, C is a sweat gland, D is a sebaceous gland, E is the hair in 

 its follicle, F is the hair bulb, G is a papilla, and H is a group of fat cells.- 

 The section is magnified highly. 



In the horse, the bristly appendages known as horse-hair, should be- 

 distinguished from the other hairs forming the coat. The latter are fine and 

 short, especially in the regions where the skin is thin, and where the hairs are- 

 imbricated on each other. The former are thicker and longer, those of the 



