Dodgeville chronicle. [volume] (Dodgeville, Wis.) 1862-current, 1872-10-11

found in every fluid and solid, except
enamel. The whole amount in the hu-
man body is 277 grains. 1t serves many
important. uses. .tnt sLas Ialec aFa
Carbonic acid is found in the lungs,
alimentary canal, the blood and urine.
The amount of carbonic acid, however,
varies, being from one to three pounds in
twenty-four hours, and the causes of
variation are temperature, age, sex, state
of health or disease, development Of the
body, muscular exertion or repose. This
gas (carbonic acid) contains IN every 100
pounds G8 pounds of carbon (charcoaD
and 70 pounds of oxygen (gas). Hence,
the maximum weight Of carbon which
escapes i'll this form from the lungs of a
full-grown man is about fifteen ounces IN
twenty-four hours. al H f49ty
The average amount of air which
passes in and out of the lungs at each in
spiration and expiration is about 0cubiC
inches; the amount passed through them
in twenty-four hours is about 622, 600
cubic inches, or, as others estimates it,
from 5000 to 5000 gallons every day.
| This varies greatly. In the first place,
the lower the temperature the greater the
amount Of animal heat to be generated,
and, consequently, the greater the amount
of air to be consumed. Also, person
lsboring in the open air breathes more
deeply than one confined to the house.
From series of 5000 observations made
by DIR. Hutchinson, the following princi
pie is deduced: "For every inch of
stature from five to six feet, eight addi-
tional cubic inches of air are given out at
forced expiration after full inspira-
ton" That is, if a person five feet six
inches in height can expire 422 cubic
inches, person five feet seven inches can
expire 430 cubic inches. h
The nails of the hand grow about two
fifths of line per week, while those of
the feet require four times that period for
the same amount of growth. Cases are
on record where the nails have been shed
periodically. The time necessary for q
nail to grow its whole length varies from
twelve to twenty weeks. The nails are
thickest at their most convex portions, in
stead of their edges; they grow only so
long as they are cut, and among the liter
ary class of the Chinese, who never cut
their nails, they are said to attain only a
length of two inches. ..
In man, the average weight of the brain
is 81 ounces; in females, 45. The aver
age capacity of the crania of Germans
and Anglo-SaXons is 80 cubic inches.
Daniel Webster's Uranium contained 122
cubic inches. c.l h 9
The amount of blood in healthy body
is about eighteen pounds, or ten quarts.
The heart is six inches in length and four
inches in diameter, and beats 70 per min
ute, 4,200 times per hour, 100000 times
per day, SO, 722, ,001 times per year, 1906
44O, 600 times in three-score and ten at
each beat 215 ounces of blood are thrown
out of it; 175 ounces per minute, 656
pounds per hour, 724 tons per day. In
an ordinary life of a man, the heart beats
at least 8, 900, 600, 900 times, and propels
through the aorta 1,500,0 900 tons of blood.
The amount of gastric juice ,secreted by
the stomach Of a wellfed, grown person
has been estimated at from 60 to 80 ounces
in twenty-four hours. A, healthy stomach
contains no gastric juice eAcept where
food is taken, and by its contact with the
surface of the mucous membrane eXcites
the secreting organs to pour out the gas
trio fluid in the requisite quantity. If the
stomach is in healthy condition, and the
brain healthy, the quantity of gastric
Juice generated or thrown out will be just
sufficient for healthy digestion. If the
condition Of either organ beimpaired, the
gastric juice secreted may be either de-
.fcient in quantity or vitiated in quality.
Let us study ourselves, that we may un-
derstand ourselves better. The proper
study of mankind is MAN.-RurG5 Neoo
Yorker. 4 E;5a