. A treatise on anatomy, physiology, and hygiene : designed for colleges, academies, and families. 8, 8, 8, Three papilltemagnified fifty diameters. 629. The lymphatics are found in great numbers in thetrue skin, and they are so minute that they cannot be seen withthe naked eye ; but when these hair-like vessels are injectedwith quicksilver, (a work of great difficulty,) the surface injected 628. How are the nerves of the small papillae arranged? How in thelarge papilla? What does fig. 113 represent ? 629 What is said of thecutaneous lymphatics ? How is their existence proved . 288 ANATOMY, PH
. A treatise on anatomy, physiology, and hygiene : designed for colleges, academies, and families. 8, 8, 8, Three papilltemagnified fifty diameters. 629. The lymphatics are found in great numbers in thetrue skin, and they are so minute that they cannot be seen withthe naked eye ; but when these hair-like vessels are injectedwith quicksilver, (a work of great difficulty,) the surface injected 628. How are the nerves of the small papillae arranged? How in thelarge papilla? What does fig. 113 represent ? 629 What is said of thecutaneous lymphatics ? How is their existence proved . 288 ANATOMY, PHYSIOLOGY, AND HYGIENE. resembles a sheet of silver. In this way their existence canbe imperfectly demonstrated. They are a part of the vascu-lar net-work situated upon the upper surface of the true papilla is supplied with a lymphatic filament, the mouthof which opens beneath, and lies in contact with the undersurface of the cuticle. This net-work of vessels communi-cates through the open meshes of the true skin with largerlymphatic trunks, that open into the venous system. Fig. Fig. 114. A plexus of lymphatic vessels in the skin, considerably magnified froman injected preparation. 630. The oil-glands are small bodies imbedded in thetrue skin. They connect with the surface of the skin by smalltubes, which traverse the cuticle. In some parts, these glandsare wanting; in others, where their office is most needful,they are abundant, as on the face and nose, the head, theears, &c. In some parts, these tubes are spiral; in others,straight. These glands offer every shade of complexity, fromthe simple, straight tube, to a tube divided into numberless Of what are they a part ? 630. Describe the oil-glands. With what dothey connect ? Do they exist in every part of the body ? Of what formare their tubes ? ANATOMY OF THE SKIN. 289 ramifications, and constituting a little rounded tree-like mass,about the size of a millet seed. 631. In a few situations, these small glands ar
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