or diagnosed by the
layman. Guineaworm is excessively rare in the United States; it gains
access into the body through drinking water which contains the
individuals. Hookworm is the cause of "miners' anaemia," and is
extremely rare in this country.

The entrance of living food parasites can be absolutely prevented by
thorough cooking of meats, especially pork and beef. Heat destroys the
"measles" and the trichina worms.

=TAPEWORM.=--This is developed in man after eating "measly" beef or
pork. "Measles" are embryo tapeworms called, from their appearance,
"bladder worms." In from six to ten weeks after being received into
the intestine of a man, these bladder worms become full grown, and
measure from ten to thirty feet in length--the tapeworms.

=Symptoms.=--Vertigo, impairment of sight and of hearing, itching of
the nose, salivation, loss of appetite, dyspepsia, emaciation, colic,
palpitation of the heart, and sometimes fainting accompany the
presence of the tapeworm. Generally the condition becomes known
through the passage in the excrement of small sections of the worm.
These sections resemble flat portions of macaroni.

=Treatment.=--This, to be successful, must be directed by a physician.
When no physician can be procured, the patient may attempt his own
relief. After fasting for twenty-four hours, pumpkin seed, from which
the outer coverings have been removed by crushing, are soaked
overnight in water and taken on an empty stomach in the morning; a
child takes one or two ounces thoroughly mashed and mixed with sirup
or honey, and an adult four ounces (see Vol. III, p. 245).

=TRICHINIASIS.=--This is a dangerous disease caused by the presence in
the muscles and other tissues of the trichinae, little worms which are
swallowed in raw or partly cooked pork, ham, or bacon. Nausea,
vomiting, colic, and diarrhea appear early, generally on the second
day after eating the infected meat. Later, stiffness of the muscles
occurs, with great tenderness, swelling of the face and of the
extremities, sweating, hoarseness, difficult breathing, inability to
sleep, bronchitis, and pneumonia.

There is no treatment for the disease. Many cases which are not fatal
are probably considered to be obscure rheumatism. Many cases of
pneumonia are caused by the worm.

=POTATO POISONING.=--There remains one variety of food poisoning which
needs mention, since it occurs when least expected, and when proper
food has been subjected