The Anaconda standard. [volume] (Anaconda, Mont.) 1889-1970, 1899-07-25
machine devices for increasing TIL,
utility of given supply of water.

machine devices for increasing the
utility of given supply of water.
No country in the world says the
Mining and Engineering Review, has
furnished SO much coin as Mexico. The
minis have coined money with a con-
stancy and in quantity never equaled
by any other country. The mint in
Zacatecas has coined silver dollars at
the rate of from four to five millions a
year from the 10th century to the pres
ent time. Even during the war of In
dependence, from 1911 to 1887, s66,332, :
900 were coined. Large as the amounts
coined by the different states of Mexico
have been, they sink into ins!gnificance
when compared with the amount COIN
ed by the mint at the capital. 1t has
coined from 1890 to 1903, s1,353, 900, 900.
and from the conquest to its independ-
ence, s2,02S. 900, 900. The amount to the
present time exceeds $4,000 900, 600.
In some of the mines on the CONT
nent where both oil locomotives and
electric motors have been used, some
comparison between the cost of the two
systems is possible. In one mine the
cost of the former has been ! lid per
train mile as compared with 81 d in the
case of the electric motor. The cost of
two oil locomotives is said to have been
one-tourth of the cost of one electric
motor. The steam, nitrogen and car
bonic acid evolved by the former is
not enough to vitiate the atmosphere:
and 1t has the advantage of compact
neess. 1t works on two-foot one
inch gauge, and when exerting six
horsepower is able to take a maxi
mum load of Il tons. 1t is said that
when running at the maximum speed
of four and one-half miles per hour.
and with the full load. the consump-
ton of oil is barely six and ne-half
pounds per hour. An arrangement of
friction clutches and chain gear on the
crank shaft enables the engine to run
backwards or forwards at the will of
the Observation-Disclosures and Iron.
In the case of a heavy and unexpect-
ed flood of water in a mine. which it
becomes necessary to stop by the con-
struction of a bulkhead a pipe with a
valve or gate should be constructed in
the bulkhead, affording an outlet for
the water while the bull>head is under
course of construction, and which may
be closed when the bulkhead is COM
pleted. A pressure guage attached to
this pipe will indicate the pressure per
square inch. Divide this pressure by
.434 and 1T will give the vertical height
or the column or reservoir of water
that has been encountered, but this
gives no indication of the volume of
water.
British Columbia is undoubtedly a
rich mineral country and is attracting
much attention among mining men. Its
development has been very rapid and
still continues. Fine towns have sprung
up, notably. Rossland and Nelson. The
press is of a character to reflect much
credit upon the province, and suggests
the presence of an intelligent progress
i've population. The papers are full of
interesting mining news and are doing
much to acquaint the outside world
with the mineral resources of the great
Northwest. There is no more valuable
adjunct in the building up of new
country than an intelligent and ener-
getic press.