PORES OF THE HUMAN BODY.
{"newspaper_name": "The Wilmingtonian, and Delaware advertiser.", "edition": "01", "page": "p1", "byline": ""}
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By apolying good microscope to the
skin ofthe human body multitude OF small
pores will be seen, through which perspi-
ration is continually issuing. 1t is calculated
there are million OF these pores in every
square inch, and 2,0l6, 100000 in the whole
body Of middle sized person.-Ihe naked
body, exposed to the rays of a burning sun,
appears through microscope to be surround-
ed with cloud of steam. Let any person
hold the tip of the finger at the distance ot
the twelfth part of an inch from looking
glass, and the surface Of the glass will soon
become dmmed by the matter issuing from
the finger.


Many experiments have been made to as
certain the quantity of perspirable matter
which is emitted from the skin. 1t is stated
in the n. E. Encyciopcdia that Mr. Crnick-
shanks put his hand into a glass vessel closed
at the wrist, and by keeping it there an hour
he collected thirty grains of liquid which
had issued through the pores Of the skin.--
On repeating the experiment in the even
ing, he collected twelve grains. The mean
of these is 81 grains. Taking p grains per
hour, and supposng the hand to be one-s,X-
tieth part of the surface of the body, the
pcrspiration IN "a hours would amount to 5
pounds ounces troy. Sanctolous says
FIVE -cighths of all the aliment Good and
drink received by the mouth is carried OH
by pcrspiration. Dodart says seven eighths
Others estimate it at much less, making II
about two pounds per day. The quantity
of sweat or perspirabic matter varies ac-
cording to the climate, season OF the year,
age. sex, state of the health, &c.


It is by the peculiar smell which the
substance emitted from the skin gives tc
each individual, that the dog can discov-
err his mas.er, and even trace him to a dis
tanCe.