Evening star., 1915-02-21

working under pressure in a caisson.
you have the same feeling when you
come into the air once more. OFTEN
times we have to be verv careful with
men who have been in a submarine for
a long time in order to prevent their
lungs being cut by the different air
10 the surface.
I'm the event of protracted under
cruise it might easily be necessary
to resort to rudimentary air cham
ber. with a scale OF atmosphere. to en-
able the men to recover gradually from
the strain of living on rariied air. This
has been done in number of cases
where foreign submarines were caught
in the mud or otherwise detained be-
low for n protracted time, thus having
to economic on their oxygen until they
could once more reach the surface. SO
far as | know. however, We have never
had to resort to such strenuous meas
ures. But, then. rs l said. we have
been singuarly fortunate IN escaping
submarine disasters.
Another trouble with the artificial
air is that of obtaining uniform at
mosphere throughout the entire ship
The apparatus which supplies the oNy-
gen to the air. at the same time Riding
1t of its superfluous nitrogen, naturally
will make the air in its vicinity more
pure than that at a distance from the
machine. Because of this. it is no un-
common sight for men new to the sub
marine HE 10 De intoxicated Win siic
superfuous oxygen, much as they
would be with too much liquor. The
only difference is that the after effects
of the Experimentation are much
more pleasant. On the other hand, new
men sometimes remain too far away
from the life-giving supply of air and
become faint from lack of proper
respiration. The remedy for this IS
simply to administer diluted oxygen
until the patient recovers his normal
breathing.
Cooking is another feature of life
on board a submarine that presents
quite an interesting problem OF course.
the ordinary range or gas stove would
be out of the question. Either OF these
appliances would entail the utilization
of an enormous quantity of oxygen,
and we therefore make use of a sim
pie and very compact electrical ap-
paratus which withdraws only very
small percentage of oxygen from the
air and therefore does not deprive the
men of this lfe-giving element
"The menu on board submarine is
not quite as elaborate as on board a
battleShip, but the meals OF the crew
differ but little from those of the same
class on a dreadnaught where the gal
ley is of the finest and equipped with
every culinary convenience 1t is the
officers who suffer most on the under
sea boat. We live very plainly and
frugally and take care not to eat too
much for there is little opportunity for
exercise, anu 1t Is best Tor the stomach
not to take in more of load than ii
can conveniently handle. Light, easily
digested foods are the rule and, a
consequence. what we do to the bill OF
fare at a regular hotel when we reach
shore is shame.
X X
TT must be admitted that life on q
submarine is rather monotonous. reg
Mated as it is by the clock The
watches are kept as on board the
larger vessels, with the exception that
when we are taking a cruise under
: the sea the officer of the watch keeps
his lookout as we'll as possible through
the periscope. This, however. is un-
usual in time of peace, for we usually
travel on the surface in order to avoid
any possible collision with a merchant
man.
"a lot has been written of late as to