A Treatise on the Eclectic Southern Practice of Medicine Page: 707 of 724

                                
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as anthelmintics, by covering the surface of the worm,
and thus closing its respiratory pores against the entrance
of air.
In the choice of purgatives, attention should be paid
to their anthelhintic properties.  Thus, calomel is a
powerful vermifige, much more so than can be satisfac-
torily explained by a reference to its mere cathartic
power. The probability is, that it proves disagreeable
or injurious to the worm by the acrid property of the
bile which it causes to be secreted.    Aloes is also
thought to possess verinifuge properties, independently
of its purgative action, owing to its intense bitterness;
this property being considered by some as extremely
offensive to worms. The same may be said of colocynth.
If there is truth in the supposition before alluded to, of
the suffocating action of fixed oils on the worms, which,
however, is by no means certain, at least in reference to
the operation of these oils when taken into the stomach,
castor oil and olive oil ought to be efficacious anthelmin-
tics. The oil of turpentine in very large doses, and the
bark of  ow ,CIrau(ftrfe root, unite purgative and anthel-
mintic powers.   Considered independently of anthel-
mintic properties, those cathartics are the most power-
fully vermifuge, which act with greatest energy on the
muscular coat of the bowels. Senna, jalap, scammony,
aloes, black hellebore, cevadilla, colocynth, gamboge,
croton oil, and elaterium have been used, variously com-
bined, and in various modes of preparation.
1. Rouid lIlrmr, Ascaris Lumbricoides. The round
worm generally inhabits the small intestines, but not
unfrequently makes it way upward into the stomach, or
downward into the rectum; and sometimes escapes from
the alimentary canal by the mouth, or by the anus. It

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