[Illustration: Letter T.]
This terrible reptile is found in great abundance on the continent of
America; and if its instinct induced it to make use of the dreadful
means of destruction and self-defence which it possesses, it would
become so great a scourge as to render the parts in which it is found
almost uninhabitable: but, except when violently irritated, or for the
purpose of self-preservation, it seldom employs the fatal power bestowed
upon it. The rattlesnake inserts its poison in the body of its victim by
means of two long sharp-pointed teeth or fangs, which grow one on each
side of the forepart of the upper jaw. The construction of these teeth
is very singular; they are hollow for a portion of their length, and in
each tooth is found a narrow slit communicating with the central hollow;
the root of the fang rests on a kind of bag, containing a certain
quantity of a liquid poison, and when the animal buries his teeth in his
prey, a portion of this fluid is forced through these openings and
lodged at the bottom of the wound. Another peculiarity of these poison
teeth is, that when not in use they turn back, as it were, upon a hinge,
and lie flat in the roof of the animal's mouth.
The name of rattlesnake is given to it on account of the singular
apparatus with which the extremity of its tail is furnished.
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