The times dispatch. [volume] (Richmond, Va.) 1903-1914, 1911-08-13

stan of scientific assistants. cor. at
least. into such OF them as are for
tunate enough TO be engaged in work
requiring a cool atmosphere. for re-
member. tho system is Intended to
BENEFIT the work. not the workers)
And yet while my collar and cuffs
were again welting, down there In this
shadowy tophet. Professor Rosa. did
nothing less than step up to the en-.
CINE cylinder. scrapo off some pure
ana Vigor snow, roll * into ball, and
proceed to MUNICH II with the salts
faction OF an urchin who tastes win
ter's first layer OF good Shedding. So
this white engine cylinder, which mag
duaraded in the guIse OF an asbestos
packing. had. in reality, a snow COW
erinG Just as bona fde as that which
Peary negotiated" upon the utmos,
tip-top OF this old spinning top upon
which we buzz and hustle through
celestial space.
It's like going down into the furn-
ACC room to freezo ice cream for
Christmas dinner--,his cool weather
manufacture--but as said. II is the
only way II can be done to n flnish
for wheels must go around TO churn
either Ice cream or artificial cool
weather. only In the latter process the
machinery Is so bulky that 1t takes a
steam engine TO run It. and you can't
make steam without hre--or IL you
can. 1t requires heat as hot as fire!
The Cold-Wnve Cnnnery.
1t is far too hot for me to describe
or you to ponder over. the details OF
this machinery. for neither you nor ]
sit ensconced amid the salubrity OF
manufactured autumn breezes or noun.
tain zephyrs In the good old days whom
you watched Dinah salt the Ice cream
freezer and wondered why. YOU wen
TO sound the paternal oracle and learn
ed some elementary physics-among
other things the law that a solution
OF salt and water requires much great
err cold to freeze 1T than Just plain wa.
ter OUT OF the old pump. And this lit
tie simple law is very important In
all this modern art OF manufacturing
cool weather indoors. Substitute cold
water for hot water in the radiators
OF your house and you cool your house
instead OF heating 1t. But to get your
water cold enough to make a per.
ceptible chill during this summer
weather you must cool it down be.
low It's natural freezing point-a de-
lighttul prospect for that superman
the plumber, IL you used plain. every.
day water. for the pipes would froszs
up and burst before you would have
any cool weather on tap Salt your
water, then. and 1t won't freeze till
far colder than would even be needed
to Biye grandmother touch O!
"rheurnatiz" or pneumonia. That is
simple enough. to be sure. But you
DO not pile table salt or rock salt into
your modern cool weather plant
Calcium chloride Is the salt used here
and II you DO not know what that IA
you will have to go to the cyclopadia.
Beneath the floor OF the cool-wave
maker which ! saw was a big tank
ample enough for Mother Hippo. on,
at the Zoo. to take her daily soak In
And in this great receptacle the brine
Ia mixed TO the proper proportions.
Over against the wall Is big cylinder
of ammonia water. such as you use to
clean your clothes. and this is being
subjected to heat, which drives of the
ammonia gas, which in another cylin-
der is condensed under pressure into
pure liquid ammonia. And in third
cylinder this condensed ammonia 10