Burlington hawk-eye. [volume] (Burlington, Iowa) 1845-185?, 1849-06-21
Scie atific Intelligence.
Fran, Silliman,e Journal

1Xhssss1S 49,
tke Atlantic and ST. Louis.
Sciea.ific Intelligence.
From Silliman's Journal.
II lwprored method Of prescribing Milk
The milk is to be mixed well with clarified
nw sugar,4 OTTO the gallon. tits thento be
evsporated with agitation; when nearly
solid i must be pressed into cakes Of suit
able size.
Steam may be used for the evaporation,
o. il the time is no object, spontaneous
evaporation in very shallow pans, with
the fluid not more than one-tenth of an
inch in depth, or drying chamber may
Be used, The temperature not to exceed
l22o F.
The cakes remain sweet and fresh for
long time and are soluble in warm wa
Ter. Another process is, 10 heat the
sweetened milk nearly to the boiling point,
and before It becomes cold TO curdle it by
Tennet or weak acid. The curd is sep
araled from the whey, and by strong pres
sure after washing in cold water, it is OBJ
tained free from adhering water. The
whey is to be evaporated to dryness. The
cnrd placed over slow fire is continually
stirred, and the dried whey added very
gradually, with bicarbonate Of soda. At
ter while the ingredients melt and unite.
A small quantity of finely pulverised gum
dragon, hastens the qualification.
Cream may De preserved by the same
methods.
Nsv Msthod for .lmalgamating Zinc
This method consists in the employment
Of double chloride Of zinc and ammonia,
1.-THE same solution which is so useful in
soldering iron and steel.
The zinc to be amalgamaied, is heated
10 about 45O' F. or 5OOo T., and the IL
guild applied by cloth or sponge and the
mercury suffered TO flow Immediately over
the surface while still moist.
The uEion is instantaneous and COM
plete, and the depth Of the amalgama,ion
i easily regulated by the quantity OF mer
curry suffered to remain in contact with
the zinc.
Mineral Coal or. the .N'le.--Coal is re-
ported to have been found on the banks of
The Nile, near Asuan. The first vein,
six feet thick, is one hundred feet below
The surface. Still deeper is second bed Of
onlythree feet thick hut Of excellen'qnality.
Mineral Goa! Of Eancourer's Island,
NORTH Vest .Hn,erica. port OF Cam
osack with its excellent harbor, promises
y become Of great importance, especially
On account Of the coal field of the north
eastern district. The coal is worked SO
near the surface, that the Cormorant, steam
sloop, was supplied by the natives with
sixty-two tons of coal within three days.
Specimens Of this coal have been examin-
edbythc Admiralty; and although it yields
considerable percentage Of ash, it is not
much inferior TO the coal Of South Wales.
n Pretty yell done.-The Boston papers
tell Of the escape Of a prisoner named
Phillips, from the State prison at Char
lestown, last week, in the following man.
ner: Phillips told the Warden that he
knew where $50, 900 of stolen money
was buried, and at length SO far convinced
the Warden Of the truth of his statement
That he in company with the City Marshal.
look Phillips in the cars to Fall River,
where the money was said to be buried,
md commenced digging in the gravel in a
bye-place for the treasure. The three
look turns in digging, until quite an ex-
cavation was made. when the rogue took
IN opportunity while the Marshal was in
The hole, to push the Warden in also, aud
throwing dirt in their faces,
until they were so blinded that he could
escape, which he did without much diff
guilty, and had not been taken at the last
accounts. Phillips unquestionably is a
'ire Yankee.
We are panied to record the death of an
daughter Of Daniel Avery.
Esq, Of Exeter, aged about five years, on
last, under the most affecting
On Friday, while engag.
Cd in some innocent amusement, she ac-
cidentally swallowed piece Of grass,
which fastened in her windpipe. 1t be-
ing found impossible TO remove it, physi-
Clans were called in but they dared not
attempt, il seems, TO remove il with the
knife, and the little sufferer died as above
stated, in fifteen hours after the accide nj !.
ILL. Journal.
BaIDcE OVER THE OHio.-The work Of
building bridge over theOhio at Wheeling
progressing. The abn,mems are up,
ana The suspension piers are rising rapily,
e : q the four being now about twenty
lees above the abutmcnts. The span is
1oiO feet, and the bridge is to be finished
a's season, and to hang 80 feet above