Vermont watchman and State journal. [volume] (Montpelier, Vt.) 1836-1883, 1852-07-01
BY E. p. WALTON g. SON.

5 icians appear to have Just discovered tina
} phosphorus composes part of the humal
, system, although the more scientific mem
brrs of the profession have long used i, will
great advantage, especially in chemical u
Mon with iron.
The muscles of the human system ar,
somewhat over 500 ia number. Some Of
them, as on the back of an adult. are 81
inches IN length and some, as in the ear
are not over a fourth of an inch long,
Muscle is termed lean meat. Muscle is Oh.
VIded into fhres and if we take the small
est OF these hbres which can be seen by the
naked eye, and place ii 10 the field of a
powerful microscope, we shall find that il
is IN itself bundle Of minute fibres, each
oil which is not more than ten thousandth
part OF an inch IN diameter, and some of
them are even less than half that size A
rope formed by twisting 6fty Of these fibres
together, would be too small to be seen. by
the unaided vision. Could we unrayel the
hbres of single cubic inch of clear muscle
they would be found to stretch out over
6OOO miles IN length. Could all the mus
cular fbres of an adult be placed in a con-
tlnuous line, they would form a thread
which would reach more than 400 times
round our globe, or over 100000 of
miles Chemically examined, dried blood
and dried muscle are found TO be precisely
the same
The little glands which produce the
sweat are situated Just beneath the CUTS, or
true skin Each gland sends up through
the SKIN litile tube, about quarter of an
inch IN length, through which the sweat is
poured out These glands number about
25OO IN a square inch of the palms of the
hands and soles of the feet, aud about $500
in square inch of the remainder of the
surface of the body. The total number Of
pores therefore, IN the human body, is a.
bout seven millions, aud the total length of
all the tubes through which the swea, is
poured out, is nearly % miles
The weight of the brain and spinal cord
Of the male ranges between 46 and 63 ounc-
es, but that of the female is often found as
low as ounces, and ,eyy seldom higher
than Il ounces. In man, one thirty-sixth
OF the whole is brain, yet II receives one
sixth of the blood Of the entire system
Surrounding, aud within the convolution
of every healthy brain, there are about two
ounces of water.
The process by which sound is commu-
nlcdted To the brain, IS very curious The
ear is divided into three paris-external,
middle aud internal ear-iirst, there is the
external ear, or porch to the house IN which
sits the god Of listening. Every sound, as
all very well know, spreads out upon the
AR, IN an unduiaiory or wavy manner, Just
as when we cast a stone into a stream, GER
tam waves are produced, which spread out
IN constantly widening circles. This wave
ia the air enters the ear, raps, as It were,
udon the little door called the membrane
fympdni, which is situated at the bottom of
the external ear Within the middle cham
Der, and on the inner side ofihls door, stand
those three lIule bones, which act as SER
wants N the hail TO Communicate the mes
sages 10 the brain. No sooner, them does
the sound rap upon tins door, than the mall
leus, or hammer the handle of which Is
fastened upon the Tuner side of the door
strikes blow upon the anvil. The anvil
throws all MS burden into the bone called
the slirrup, to which 1t is fastened. The
stlrrup itself is fastened by rug TO the
oval window which opens to the internal
ear, To vbrate, and thus tell the story 10 the
nerves which surround it, aud through them
It Is communicated 10 the brain.-Exeter
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