The Express.
London, England, 1852-06-29 00:00:00

Our anticipations of improvement in the market
for mining stocks aro being gradually but surely
realised. A very large arid sutisfuetory business has
biro done to-day, in many ca-es at udvane‘ d prices,
and the general appearance of the market is decidedly
good. The implines are more particularly for United
Mines, West Camden, South Ci'irachin, Holmbush,
Speedwell, West Treasury, Clive, and Cubert. The
prices at which auks have been made a c reported to
us as follows by the moat respectable brokers and
dealers, but due allowance must be made for the wide
margin frequently existing in this variable market
as between buyer and seller: Alfred Consuls,
141 4, 15 ; South Caradon, 133 ; Linares, 17s. Bd. ;
Wheal Kitty, 71; Neptune, 51; Great Wheal Al-
fred, 2'2;; Wheal Arthur, 17; Merlin', 61, 7 ; Cal-
lington, 8 ; Clive, 6i, 2, ; Hoitnbusb, 21; Cohort,
225. 6d., 235.; Lewis, 19; Speedwell, ti; West Cam-
den, 110 ; West Providence, 48 ; North 111111er, 9 ;
Wheal Harriett, 325. 6d.; East Tamar, 19s. 6d.;
South Tamar, 3i.
The market for the gold mining shares was uni-
formly flat, the only exception being Liberty (Vir-
ginia) shares, which advanced 7s. od., closing 2 to
21 prem. Ague Fries and Colonial Gold shares are
each quoted only par to 1 prem. Australian Cun-
sols aro quoted die. to par; Melbourne, par to
prem.; Yuba River, to prem.; Britannia, 4to I
dis.• Baden Baden, par to prem.
Letters from New York state that sales had been
made of 300 tons of Spanish lead to arrive, at
1 dole. age. cash ; and also 20 tons, at 4 dojo. 621 e. ,
short time, adding interest. New sheeting copper is I
held at 231 to 24 eeno, the latter price for light
sizes; yellow metal 19 cents; old copper of good
quality brings 20 to 201 cents.
From San Francisco wo learn that the stock of
iron on hand is excessive, with the expectation of
further considerable imports. Bar had been sold as
low as 24e. per lb. Sheet iron varies from 6to Bc. ;
the inquiry is very limited. Pig lead had declined,
and cannot be quoted at over lie. per lb.
From the Board of Trade returns, just issued, we
extract the following detailed account of the quanti-
ties of metals of home produce and manufacture
exported from the United Kingdom during the
month ending the sth of May, to the three last
years :

Quantities.
Exrottra. Month ending May 6.
1850. 1841. 18.52.

Metals :—eis.

iron;pig toot 19,466 24,307 21,648
Bar, bolt, and rod tons 43,863 48,860 49,82'2
Wire
Cut tons 2,130 1,806 6,472

Wrought of all sorts tons 14,614 13,982 12,544
Steel, unw caught
Copper in bricks and pigs cwts. 13,7'26 9,520 4,631
Shirt•, nails, (includ-
ing mixed or yellow
metal for sheathing) cwts. 16,064 18,600 15,337
Wrought of other sorts
Brass of all sorts cwta. 1,093 1,792 1,187
Lead

Tin, unweaned cwts. 3,193 1,186 2,807
Tin plutes value E80,960C1113,7:35C99,1139
The results presented by these returns for vault
period ure not widely dissimilar. The subjoined
statement exhibits the total declared value of all the
nittuls comprised in the above table, from which it
will be seen that this important branch of the ra-
tional industry continues in an active state :
For the month. Fur tour months.
tria 1'809,913 .... .1.:2,773,0ek
18.11
1840 Bll,lOB .... 2,780,810
The exports of foreign and colonial produce fur
the month are shown in the subjoined:
Quantities.
Month calling May 6.
1550. 1101. 182.

EXPORTS.

Melalu—tix. :

..._..... .....
Capper unwrought and part
wrought cwts. 1,060 2,412 1,474
Iron, in bars, unwrought... tons 167 103 156
Steel, unwrought
Lead, pig and sheet
Spent?
11u, in blocks, ingots, burs,
or slabs
~.. .... ... ... .- .- .

Quicksilver
Taking the four months' returns, we have a great
increase m speller and tin.
The returns of imports arc as under :
Quantities.
IMPORTS. Month coding May
Metals---via.: 1850. 1811. "

_ .
Copper ore and regulus tons 6,529 5,741
Copper,unwrought and part
wrought
Iron in barn, unwrought tons 1,609 1,127 695
Sue], unwrought
Lead, pig and sheet
Spelter tons 1,388 1,430 1,439
Tin, in blocks, ingots, bars,
or slabs cats. 1,268 2,848 2,833
Quicksilver
Copper is the article that exhibits the chief move-
ment in this branch of the returns. The imports
both of copper and copper ore in the month have
shown a tendency to a rally, but the four months'
returns still show a progressive fa'ling off, being as
follows: _ _

For four months.
Copper. Copper ore.
ewts. tuns.
1852
1851
18.30
This result comes in confirmation of the view re-
peatedly expressed by us, that the supplies of foreign
and colonial copper, owing to the works in Cuba and
Chili having been interrupted, and the falling off in
the Australian supplies, are in poem of diminution.
The t ffect of this movement has for some time past
been evident in the rise in the copper market.