ON ENTOZOA. 559 
time. Other authors maintain that it is a worm altogether 
interior, and allege, in support of their opinion, that it has 
never been found out of the body of man; that it is entirely 
similar to the other species, and especially to the filaria of 
the simia; and that it is more probable, that it is born in 
the interior of the parts; that it may exist there for months, 
nay, entire years, without producing any sensible accidents ; 
and that it is only when it approaches the skin, when it 
pierces it, that these accidents may become serious enough 
to produce intense pain, or other alarming symptoms. ‘This 
is pretty nearly the opinion of M. Rudolphi, and it appears 
the most probable. Nevertheless, some persons, more versed 
in the art of surgery than in zoology, and influenced, no 
doubt, by the existence of a sort of inflammatory tumour, 
which the presence of the worm produces at the skin, have 
ventured, in these latter times, some doubts concerning its 
real existence, thinking it might be nothing but the cellular 
tissue itself, struck with death, which thus moulded itself, as 
it were, into a worm, in traversing the thickness of the skin. 
M. Delorme, in a letter inserted in the eighty-seventh volume 
of the Journal of Physical Science, has shown by facts, how 
erroneous is this opinion ; he has confirmed all that was known 
concerning the symptoms, and even the treatment of the af- 
fection which follows the appearance of the worm at the skin. 
The symptoms are a tumour with redness, and most violent 
pain. Soon a little orifice appears, through which the worm 
puts forth a small part of its body. The treatment consists 
in seizing this part and rolling it with much caution round a 
small stick, which is turned very gently every day, for fear of 
breaking the body of the animal, which would render the ex- 
traction more difficult; besides that, the presence of the re- 
maining part which would putrify, might occasion accidents 
still more fatal. The observation has been made, that the 
people who walk barefooted, like the negroes, are more fre- 
