The shepherd's manual. A practical treatise on the sheep by Stewart Henry

Author:Stewart, Henry. [from old catalog]
Language: eng
Format: epub, pdf
Tags: Sheep
Publisher: New York, Orange Judd company
Published: 1879-03-25T05:00:00+00:00

STEUCTUEE OF WOOL.

143

derma. It is in the derma that the hair is rooted, and from it that it is nourished. The hair, (or wool), consists of two portions, the shaft, or that which pierces through the epidermis and forms the outer coat or fleece, and the bulb or root which is imbedded in the derma. The bulb of the hair is rooted in a gland called the hair follicle, and from this it derives the cells which form the outer surface of the hair. These cells are converted into flat scales, inclosing the interior fibrous structure of the hah', and as they are successively produced, they overlap like shingles on a roof, or the scales of a pine cone, forming the imbricated coat of the haii* to be hereafter described at length. Rising into the hair bulb is the hair germ, which furnishes the hair with nutrition, and the elements of its growth. On each side of the hair follicle is a gland which secretes a viscid fluid. These glands, known as the sebaceous glands, open by small canals into the sheath of the hair. Other

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