Guide to practical meat inspection : including examination for trichina / by F. Fischoeder.

  • Fischoeder, F.
Date:
1900
Catalogue details

Licence: In copyright

Credit: Guide to practical meat inspection : including examination for trichina / by F. Fischoeder. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    Se Woof''' '^ ^^^^ ^'^^ substances from entering The color of the lymphatic glands differs not only in the same species of animals, but also in the same individual animal and even m the same parts of the body. It is not uniform m shade, but is alternately patched, regularly or irregularly, chiefly with bright and dark colors. Old, lean animals have larger and darker colored lymph glands than young, fat ani- mals. In the lymph glands of cattle the darker color predom- inates (dark-gray, grayish-blue to grayish-black). In swine and calves, on the other hand, the lighter color predominates (bright-gray,-reddish-gray and yellowish-gray). The color in sheep and goats is midway between. The individual lymph glands are discussed under organs. All foreign material is arrested in the lymph glands, and is rendered harmless, or else it diseases the gland under the influence of the resulting contamination. In a short space of time follows disease of the glands lying adjacent to the heart. Thus the lymph glands may become diseased from one an- other until finally the poison gets into the blood circulation and sets up a general blood poisoning. For example, if a wound on the finger is infected by a poisonous substance, the finger swells and the small lymph glands of the wrist become diseased. Soon the glands of the elbow likewise swell, then the shoulder glands, and finally a general blood poisoning re- sults. Each organ and each member of the body possesses lymph vessels in whose course are embedded vast numbers of larger or smaller lymph glands. When the organ or mem- ber becomes diseased the lymph glands also become dis- eased. This sensibility of the lymph glands is so delicate that often those diseases, which produce only such slight changes in the organ itself that they can be detected with much diffi- culty or not at all, will in each case show easily recognizable changes in the lymph glands belonging thereto, which fact is especially important to the meat inspector. To detect the condition of an organ or a member that ap- pears apparently healthy, the meat inspector does not first un-