. The domestic sheep : its culture and general management. Sheep. CHAPTER VI. WOOL: ITS HISTORY, USES, NATURE, CULTURE AND DISEASE. Wool is a modilied form of hair. It is distinguished from hair, however, by certain special and prominent character- istics, while retaining to some extent other properties which are common to the natural covering of all animals. It has precisely the same chemical composition as skin, hair, and the feathers of birds, having as these have about 16 per cent of nitrogen and 4 per cent of sulphur. It is distinctly a growth from the skiln, being rooted in it, and drawi
. The domestic sheep : its culture and general management. Sheep. CHAPTER VI. WOOL: ITS HISTORY, USES, NATURE, CULTURE AND DISEASE. Wool is a modilied form of hair. It is distinguished from hair, however, by certain special and prominent character- istics, while retaining to some extent other properties which are common to the natural covering of all animals. It has precisely the same chemical composition as skin, hair, and the feathers of birds, having as these have about 16 per cent of nitrogen and 4 per cent of sulphur. It is distinctly a growth from the skiln, being rooted in it, and drawing its nutriment from it, and partaking with it in precise sympa- thy its prosperity and adversity; growing luxuriantly, and in its best form, in health; but equally suffering with it in sickness and Fig. 1. a, Epidermis, or surface skin, 6, Dermis, or true skin. c, Fiber of wool, with its follicles. d, d. Nutritive glands. €, e, Capillary blood vessels. /,/, Masses of fatty tissue, (Magnified 500 diameters.) Its manner of groswth is peculiar. Its root is a bulb which is inserted in what is called a follicle of the skin, as shown In figure 1. It is not deeply planted, and is thus subject to §ei"ious injury under what might be thought quite. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stewart, Henry. Chicago : American Sheep Breeder Press
Size: 1943px × 1286px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectsheep, bookyear1900
