The domestic animals should be properly housed and protected from the weather, should have plenty of pure water and should be provided with wholesome food. They should be properly inspected before they are slaughtered and after the animals are slaughtered and prepared for market the meat should be thoroughly inspected. Meat Unfit for Food Meat is often rendered dangerous to health by the adulterating processes through which it is put. There are many ways in which meat may be adulterated. (See table under Food Adulteration.) Slightly spoiled meat is a great source of danger. It is very difficult to recognize spoiled meat, even though the deteriorating processes which have taken place are great enough to injure the health of those who eat it. We are not referring to decomposed meat, for it is a very easy matter to recognize this by its offensive odor. The appearance may not thoroughly be affected by even the most serious infection of the deadly poisons. However, inspectors are supposed to reject meat that does not possess the raw, fresh appearance, or meat from which any amount of fluid of an abnormal color exudes upon pressure. Danger to Health From a hygienic standpoint the danger to health from meat may be classed as: (a) infection from entozoa; (b) infection by bacteria; (c) toxins and ptomaines. These conditions may result from: (a) dis-eases of the food animals; (b) postmortem changes that may take place in the meat; (c) infection of the meat; (d) adulteration; (e) the use of preservatives. Such parasites as tapeworm, trichina and echinococci may result from spoiled meat. Tapeworm Meat infection may result in two species of tapeworm, the tænia saginata and the tænia solium. The tænia saginata is due to infection from beef, which is known in lay terms as measly beef. The tænia solium is due to infection from pork, which is known in lay terminology as measly pork. The larva of the tænia solium appears in hogs and is known as bladder worms, from the fact that it is found incased in small cysts in the intestines, the muscle fibers, brain and other parts. The larva of the tænia saginata is found in the muscular fibers and connective tissue of cattle and when ingested in man develops into the tænia saginata. Trichinosis There is a parasite known as trichina spiralis which is found as a minute spiral worm in the muscular fibers of pork. It is visible to the naked eye as white specks. The ingestion of this parasite into a person with subluxations, causing interference with transmission of mental impulses, produces a condition which is called trichinosis. It is an acute condition and the symptoms resemble typhoid fever. It often results fatally. Echinococcus The echinococcus is sometimes found in the meat of hogs, sheep and cattle. When the eggs are ingested in man they hatch and the embryo pierces the mucosa and lodges in the tissues, forming a hydatid or cyst. These cysts develop and increase in size as the larvæ multiply.