super-added to the excretory matter resulting from the vital processes of
the body puts an unusual and unnatural strain upon the liver and kidneys.
It has been observed, that the eating of the flesh of some trapped animals
has produced severe symptoms of poisoning. The pain and horror of having a
limb bleeding and mangled in a most cruel steel trap, the struggles which
only add to the misery, slowly being done to death during hours or even
days of torture, has produced in their bodies virulent poisons. Leucomaine
poisons have also been produced by the violent and prolonged exertions of
an animal, fleeing from its pursuers, until its strength was completely
spent. Cases are also known, where a mother nursing her infant, has given
way to violent anger or other emotion, and the child at the breast has
been made violently ill. We must not expect the flesh of any hunted or
terrified animals to be wholesome. Animals brought in cattle ships across
the Atlantic, suffer acutely. After rough weather they will often arrive
in a maimed condition, some being dead. To this is added the terror and
cruelty to which they are subjected whilst driven by callous drovers,
often through a crowded city, to the slaughter house to which they have an
instinctive dread. It is only to be expected that the dead flesh from such
animals, should contain an unusually large quantity of the more poisonous
flesh bases.

Purin Bodies.--The term purin has been applied to all bodies containing
the nucleus C_{5}N_{4}. It comprises the xanthine group and the uric acid
group of bodies. The principal purins are hypoxanthin, xanthin, uric acid,
guanin, adenin, caffeine and theobromine. Purins in the body may either
result from the wear and tear of certain cell contents, when they are
called endogenous purins; or they are introduced in the food, when they
are distinguished as exogenous purins. These purins are waste products and
are readily converted into uric acid. The production of some uric acid by
tissue change is, of course, unavoidable; but that resulting from the