Spirit of the age. [volume] (Woodstock, Vt.) 1845-1913, 1909-08-21
An Air Cooling Device.

An air cooling device which can re-
du"c the temperature in an apartment
twelve degrees in Il few minutes has
been perfected by pr. William j. Man.
nlng, medical and sanitary officer of
the government printing office. The
device for rapidly lowering the tenn
pcraturc of the air has been erected in
the emergency hospital at the govern
ment printing office, which institution
Is also of Dr. Mnnning'S creation.
Daily demonstrations of the simple ana
inexpensive device are made During
recent days when the mercury in the
thermometers was soaring well up To
the hundred mark and humanity swell.
tered in the grasp Of the hot wave the
temperature in the little hospital at
the printcry was reduced by the Man
ming method to n degree of comfort.
Evaporation Lowers Temperature.
The cooling apparatus is based on
the principle of the cooling effects Of
the evaporation OF water. Suspended
from the ceiling of the emergency hos
pital in the government printing office
Is strip of cotton twill I'm Il vertical
plane three feet wide and forty feet In
length. Through n hem in the up
per edge Is run tube one inch in
diameter and perforated on the bot
tom with holes one inch apart ana one
eighth of an inch in diameter. At the
lower edge Of this strip of cloth is IL
metal trough. Connecting the tube
with the water faucet by. means of
common rubber hose, water is passed
through and. percolating through the
holes, tricilcs down through the fihcrs
of the cloth, thoroughly Eaturnting il
in few moments. The trough is in
clincd slightly, and the flow from the
cloth is run off through an outlet at
the lower end. Thus moist area of
great extent Is produced, and all that
is necessary is to induce rapid cvapora-
ton
This is accomplished by DR.. Manning
by means of two electric fans. one at
each end Of the strip. AS these are set
in motion the cloth screen. saturated
with water, rapidly vibraics and rip
pies and waves i'm the breeze created
by the fans. Thus the water is quick
~ cvaporatcd, and as the flow is CON
Iinuous the process of cooling goes ON
without interruption.
Parks to Line Potomac.
In line with the general movement
for a more beautiful America" as
advocated by the American Civic 1850
'iation, plans are pending in congress
or thorough Improvement of the
liver front of the nations capital.
These provide for Il park system
llong the picturesque Potomac and
he identification OF both sides that
viii be a credit not only to Washing
ion, but to the nation.
Commissioner JudSon's plans include
he building of stone or concrete
locks in place of the wooden Struc-
urcs and shanties that now mark the
busiest part of the city. 1t is proposed
II time to have splendid driveway I
nd promenade, II scheme which, il is .
will lead to the extension of I
he city to the other side of the Pc ,
Omac.
Potomac Park Only a Beginning.
Potomac park itself was established
pom the flats, the elevation being
made with the mud and clay dredgcd
rom the river when the channel was
ecpencd. This park Is only the be-
inning, and similar recreation places
.ill be established along the river
ront now available for commercial
urDses. Along the upper Potomac.
DO 1t Is proposed to make parks.
CAPT. STIJnEILHI n