, 1898-08-27

W.
the Moravian west grass piece ha0 Deell
thrown down. We are told that a mam on a
donkey in crossing the ''gut" running down
Princes Street" somehow fell on INTO the
stream and WAS rolled along by the force OF
the water till he brought mp ia a bend, where
the slack water gave him o chance OF
escape.
A short time since we paid ~ visit to tho
ice factory ia West End. Il 10 in the Bay
Street, aud is decidedly the hottest pIhce III
that rather warm street.. Strange it is that
heat should be required TO make see; buS
strange as it may seem it is nevertheless true.
The Arst thing that caught our attention on
entering was "a burning fiery furnace" The
doorwas open and in the midst Of n quantity
Of burning wood o largslog was blazing right
merrily, while two men wore busy hosting
and pushing in another leg to join IN tbs
sport, Over the furnace there was, of course,
@ boiler, and the whole was separated 10y q
thick wall from che rest Of the space. Paral-
lei with the furnace and not fur from 1t we
found the free4ing t0nk. ia the cover OF
which We SAW a number Of small movable
lids or covers. When one Of these Ia lifted
we look down on % liquid; this is the cola
brine which freezes the water, converting 1t
into loo. While we arc looking on, all at
bSbAUMBb AAAoS % uCOLB S&Ag -
down into the cold brine aud Oils IL with
w0ter from q flexible tube; he then shuts
down tholid and thors Ehe Can will remain till
thc heat is sufficiently t0ken out OF tho
water by the cold brine, 0nd then the oan
will be lifted out with % block Of ice filling
il instead Of wafer. You, OF course, now ask
how il is possible TO make aud keep the
brine 30 cold that it can freeze the water IN
@he cana which are lowered into it,
To sec how this can be done let US first
remember the well. known fact chat rapid eva
poratiOn will produce cold, or more correctly
speaking, will remove heat. Now this is the
principle applied in the making Of ice. Pass
ing through the froOSing tank below The sur.
face Of the brine. % number OF pipes are seen,
and these pipes contain liquid ammonia, %
substance that very rapidly eVaporN1es into
ammonia gOs.
The evaporation in these pipes is kept up
by g machine called the compressor, 20 soIt ot
dir pump, whicI draws off the gas from the
pipes, Compresses it into the liquid form
again, and Onoe more sends IL into che pipes.
Thus the compressor keeps up q continued
circulation Of the ammonia, at one end draw
ing it from the pipes as % gas, ut the other
end returning it TO them as q liquid. 1t is
the rapid and continuous evaporation thus
kept up that brings down the temperature Of
the pipes to suOlI IL degree that they are able TO
keep tho whole circulating mass OF brine coll
enough 10 frOozo the water in the cans,
And now we Can see how it is that heat
makes Sice. The furnace makes steam in
the boilers; the steam drives tue engine that
works the compressor; the compressor keeps
up O rapid evaporation OF ammonia; this eva.
p~or0tion oools che pipes holding the ammo.
nia; they cool the brine; and the brine cools
land ultimately freezes) the water in the
cans. There We have the whole story in q
nut shell.
The courteous propriVt'r wHs not In the
factory ct the time Of our visit, but We found
the principal attendant very obliging 0nd
vary willing to explain everything. He
showed US how the water that is turned into
icc is obtained. 1t comes from the sea, from
which is is continu lly being pumped mp by
q small engine. After being pumped up it is
RUst distilled, then it passes into the boiler,
and having b,en converted into steam drives
the machinery; after having donO this work
the steam is condensed; hastily the wNter thus
obtained is filtered, aud gives us the purest
waser possible. 1t must DO u hardy microbo
indeed that could pass through the still and
then through the boiler and yet come out
alive. We think our readers will all feel
safe in using the ice of the Crystal Ice Com.
pany when they know what IL severe course Of