The Bryan daily eagle. (Bryan, Tex.) 1895-1898, 1898-01-01
INTERIOR or THE CHAMBER

time. eating there and sleeping there
The dimensions Of the interior space
have been made seven feet long By
four feet vide. All communication
With the outside world must BE- had by
telephone. The furniture for the con-
fort Of the subject consists simply Of
cot bed. which may BE- folded and
put out Of the way during the day. a
chair and a table Through a glass
door IN the front Of the cell the en-
perlmenters may watch their subfea
His food and such other artieles}a a. be
may require from time 20 time are
passed into the air tlght chamber
through a brass tube extending through
the wall. The air admitted 10 this In
teresting chamber during the subjects
imprisonment n kept constantly In
motion by an air pump on the outside.
After leaving the chamber. where u
has been breathed by the subject. the
same air passes through various COM
plleated devices which analyae Il. ~
move the newly acquired moisture and
carbolle acid gas and measure lis vol
ume. Thus the air passing into the
cell and that passing out may b. con-
pared. Before being passed into he
chamber the subjects food r. carefully
weighed and anaiyled. After each
meal. and from time to time. all waste
matter not eaten or not retained by
the digestive system Ia returned TO
the laboratory outside. through the
hrass tube. to BE- weighed and anal
yzed again.
During the entire period Of bis con-
hnement the subject IA eagerly watched
b. corps Of observers. day and night
To best understand the means OF de-
terminlng the relationship between
food and brain Del us suppose the sub
ject TO be an engine His food l. he
fuel. This when burned IN the dlgcs-
tive system is transferred into heat
and motion. But the human engine
possesses properties not present IN
the ordinary engine OF iron and steel
Portions Of its fuel are used 20 build
up and repair ~ Own parta Il is fur
thermore and above all an automatic
engine. which regulates and directs L.
self. Some OF its fuel IL utilized 10
supply this directive f0rce-brain forcc.
The hiel Of the human engine Il nisro-
gen. carbon, hydrogen. oxygen. sui
phur. phosphorus aud other constitu-
ents. Nov. 20 come directly 10 the
point. which Of these n utilized chief
b In the creation OF brain forcel TO
answer this question definitely. the
dietary experts viii have to make many
experiments upon great numbers Of
subjects confined for long periods OF
time In the strange apparatus de-
I scribed As yet the air tight chamber
has been used Tor several preliminary
experimental The most important Of
these. which has just been reported 70
the secretary Of agriculture. lasted "
DAYS. The subject was a young and
vigorous man. Mr.. A. W. Smith. one Of
J Professor Atwater's assistants. p years
Of age. welghlnG i5e pounds His daily
menu during his long Imprisonment
consisted 81 different quantities a
white and brown bread oatmeal. baked
beans. milk. butter, sugar. bccisteas
potatoes and apples
The ~ DAYS OF the experiment Wcrs
divided arst into a preliminary ane
supplementary period amounting &
three days. The remaining nine day.
for the actual experiment were divide.
into three periods Of three days each
The FIRST three days were devoted 20
study % the relationship between iool
and thought They were spent by Ca
subject IN severe mental labor. n
worked eight hours a day 40 his tabl,
solving dinCult mathematical prof.
lens and studying a German work +,
physics The second period OF thro
days were spent In absolute rest. IN
subject sat or reclined during the dal
and slept as usual AZ night The thir
three days wre devoted to severe an
exhaustlng muscular exercise. with
pulley and weight. continued elsl
hours each day. Comparisons Of n
periods Of brain work and rest an
eloaed the fact that the human engiI
burned virtually the same amount
fuel during each period. Strange
relate. the indication was that bra
work does not burn up any more
the body OF Of the food than does a
soiute rest On the other hand. a We