Memphis daily appeal. [volume] (Memphis, Tenn.) 1847-1886, 1873-03-16

ore gives s0jS per cent. lead by fire assay. This
lead would cost $50, aud probably would.not
fully yours, JOHN TORREY & son.
PnILADELPIIIA, A, August 2S, 1871
f. Woodward, Md, No. 42 Madison street,
Memphis, Tennessee:
DEAR SIR-The four samples Of ore you sent
Ounces Silrer Coin
Marh. per ton. Iall,s.
Kent ucil ........--.......-....-- ibyl ~
ARKANSAS .....--..-...--...-.-...- 4O-a5o u o.
Texas, black Ore......-.. .....--...nOue.
Texas, green ore.--.-.-.---..--..none.
The ore marked Texas" black ore contains
a considerable amount OF magnetic oxide OF
Iron, but no copper. Texas green ore con-
tains neither copper nor iron in any quantity.
In reply 10 your letter of August twenty
fourth, we would say, that II the ore IS prop
erly averaged IL is not necesSay 10 assay a
large quantity OF IT, II the assay Is 10 be
made OF a large quantity of ore, shOVelful
should be taken from each bucket as ii arrives
from the mine These should be well-mixed,
and II in large Jumps should be broken hne
and the heap divided in half. This half
should be well-Inixed, and One-half OF IL again
separated and mixed, and 50 ON until con-
yenient amount for a sample Is obtained. by
so doing, q fair average sample Of the ore may
be obtained, and an assay, properly made, Will
show the true value of the ore IN silver or
lead. It should, however, be borne in mind
that in the case Of ores containing metallic
gold or silver the above will not apply, by rea-
son OF the n-pulverizability OF the free
metal
We incl0se the buttons OF silver obtained
from Kentucky and Arkansas, together with
our bill OF charges. Please emit either check
BOOTH Il GARRETT.
PmLADEPHIA, September u, 1872.
Z. Woodward, NJ. D., No. = Madison street,
Memphis, tennessee:
DEAE sIR-Ihe sample OF silver ore marked
No. l, contains copper, iron, zine, silver and
antimony, combined with sulphur. The
amount of silver per ton l22i0 ns.) Of ore, is
S2. . ounces, or in gold coin or silver dollars,
s6i9 81. We enclose the button Of silver OBJ
tanned.
Sample No. 2 consists of quartz containing
sulphuret Of iron, and is OF no value.
sample No. 3 consists OF four different speci-
mems. The largest piece is iron pyrites; the
second sized pieces contain horous quartz;
the two small pieces of quar'z contain copper
pyTites, and the decOmpoSed rock contains
nothing of any value whatever. 1t is unne-
cesSary TO say that vein Of the above is worth
less unless the copper pyrites is in sufficient
quantity 10 be worth working. Yours respect
fully, BOOTH * GARRETT.
Mr.. f. WOODWARD, 42 Madison street, Mem
DEAR SrR-The sample of ore, and enclosed
letter, were duly received. We send you here
with the results of our assays of the ores, and
our opinions, as far as we can form them.
We broke OF about One-third OF the silver
ore from that end of the piece ofquartz, which
contained the black sulphUret, SO that the
portion assayed nearly represented the ore, as
IL would be when dressed by the usual metal
lurgie treatment of stamping, washing, etc.
The silver ore aSsayed $50 lS3-lOOO o. of pure
silver in a ton Of such dressed ore, which Is
equivalent to si77 70 in silver dollars.
The lump of galena, being equivalent to
dressed ore, was directly assayed, and yielded
: 10 per cent. OF metallic lead II also con
tanned the rate Of So 35-l00 OF, of pure silver
per ton OF the galena, which gives an equiYa-
lent value of So s. in silver dollars.
The blende was assayed and silver found TO
The accompanying rock or gangue did not
appear TO US worthy OF examination, and
therefore we preferred not putting you TO the
cost of an assay.
In response to some general questions in rela-
ton to the mine, we reply that we know of no
general law Of favorable change OF such ores
in descending; that bende is The only sub
stance that tends TO make the ore refractory;
that IT is impossible for us to express relia-
BILE value for the mine.
We can say thai the mine from which either
your black siIver-ore or your galena is de-
rived, contains very valuable ore; but that
the value of the mine Itself VIII De due 10 the
quantity of those ores that can be extracted.
You should endeayOT to determine how much
dressed silver-ore or galena can be obtained
from cubic foot, or better, from a running
foot of the vein; and having made a thorough
average of such quantity, by powdering and
thorough mixing, an assay should be made OF
such average. such process viii alone ena-
| bic YOU 20 determine the true value OF the
''''-'N' B0OTH & GARRETT.
UNITED STATES ASSAY OFFICE, }
NEW YORK, 80, Wall street,
January IS 1873.
4 Z. Woodward, NJ. D:
DEAR SIR-The following is our report upon
the two samples of ore that you sent to US by
| express on the thirtieth ultimo. The sample
marked ''sulphuret of silver" contained at the
/ rate of Sl052 20 Of silver per ton, and no gold.
/ The sample of galena contained SIS 81 silver
per ton, and no gold. The galena contained
$ per cent. metallic lead by fire assay. Yours
respectfully, JOHN TORRE1 & son.
Enclosed please find the lead from one ounce
of the galena ore, and the silver button from
one-quarter ounce of the sulphuret Of silver.
Yours respectively,
John TORREY & son.