, 1860-02-28

principle ofthis auartz-crushe1 is the well known
stamp mill, into which, however, this Chicago
| firm hare introduced several new and valuable
| features The mills are Of three sizes, the
smallest being six stamps of 800 lbs. each, ut
5000; the medium size, six stamps Of 400 lbs.
at 800; and the largest, siz stamps Of 500 bs
each at $500. These stamps are in each case
ranged in sets of three, and By cams Of pccu-
liar shape raised 10 fall like gigantic pestles
twenty inches, upon the quartz, in 4 cast iron
mortar, through which small stream ofwater
| is conducted. 1t is claimed that the smallest
mill will crush from t:ve to eight tons Of
quartz per day.
4 prominent feature in these mills, as made
by this firm, was shown by the fact that the
| mill, with 500 Il stamps, yesterday, Was being
run with seren horse power engine at 80 lbs
of steam, aud it is claimed this is one.Aaif less
power than the same work has ever been accom-
plished By before. A pulreEizing machine, cost
ing only 5000, is made to be used IN connection
with the stamps, and thus fully double the
amount Of work performed. This latter is an
invention Of this 6rr,, and patent has been
procured for 1t. Old California miners, several
of whom have seen it, pronounce The Mill and
Putverizer superior 10 anything they hare ever
seen, and hare given their certificates to that
effect,
These machines are justly attracting much
attention, and all intending to embark in mining
operations at Pixies Peak will do well to seethe
Mill and Pulvcrizer, or, as the next best thing,
s"nd for one of P. W. Gates & Co.'s circulars.
Their relations with the mining region this
season promise to become SO important that
David X. Frazer, ESQ., Of their firm leayes for the
gold region next week, to superintend the
business matters Of the firm there.
Are all our Chicago mechanics and merchants
aware of the trade, claims and promise Of the
gold region, and the emigration thlther? What
are they severally doing to secure it2
The New Amoskese Steam Fire En-
Eille.
The new steam fire engine, the Little Giant"
from the Amoskeag Works, at Manchester, N.
H., has been long enough in our city to have
IRON many friends. Indeed many Of the most
nyeterate sticklers for the old system seem on
y to have been waiting until now to yield to the
claims Of tue steam fire engine. Andits expert
cuce here has been no parade day af1air. Our
readers will remember that ths manufacturers
of this engine only asked that it should be
adopted or rejected after fair and satisfactory
test of its cxcellenccs, aud to this it has been
subjected, and has come out, as regards the ser-
dict Of citizens, victorious in all.
1t has been long and faithfully tested at the
plugs and thrown its streams one, two and four,
under all tile circumstances and conditions that
experienced ingenuity could suggest Better
| too, that il has been out On nine OCCASIONS to
actual service at fires, in oil Of these working
well, and rs the result OF none OF them fequ11-
ing penny's ousaay 1or 1ep9'ls' P{t4as 4sAps Appss.
emily :'ow III: as good :ofocs "a fASa cano
| IRON tue SHOP WHICH speaAs "ea ios 10 auAa
oilltyT. and Is ! record WHICH ho o1nef eas'ne -
use here eau SHOW As"e a'e Jos' Nv" ~ A'"s
our steam Ire department. anu 'ne quss'''A o'
merits, comparative and ac'uat' Is oe'otc out
citizens, brief description Of the Little G1ant
| may interest our readers. 1t Is machfhe
weighing about 5000 pounds, and rests upon
four wheels. We present as follows the meas
uremcnts taken Of tue machine:
Hesh. Of nd hce!s + n
is.esith eft1e tor stfsad d"j................. :.
nesss' q aa4is 70 siej. "
The mechine is go hing IS to carry three
| fifths of the entire weight upon the rear axle,
which is ct inches in diameter. The FIRE box Is
built into the rear axle" or to speak moro
properly, the ends Of the axle are firmly at
tacbcd 10 either side of the fire boz. The boiler
is cylindrical, upright, aud directly upon the