The Goldfield news. [volume] (Goldfield, Nev.) 1904-1911, 1905-12-08
WILL nEsunE pEvELopMENr OF JUMBO

Now hat the grub stake, suit of James G. Ford vs. C. D. Taylor,
president of the Jumbo Mining company, has been disposed Of announce
mem of which was made in last week IS issue of The News, arrangements
arr being made o nee more operate that property IN a manner co"me"
smate with its worth. Mr.. Taylor is still absent from the city, nj Other
gentlemen Interested in the enterprise are authority for the statement
that development It's t. be prosecuted vigorously in the immediate uture.
The shaft has been lowered o a depth of 100 feeta N a oon al a ="
foot sun has beer provided crosscuts are to be III out and the lodges
explored 1t that point. Exploration will also be continued in tn upper
levels IS well, and to further the breaking down Of ore the working force
is % be increased.
Considerable delay has been experienced in the erection of the
Nissen twostamp experimental mill owing to weather conditions n
delay in the arrival of material, but this difficulty has in part ben
overcome and from o on more rapid progress will be made The enief
cause of hinderance at present is due to tn faett IA II is imPossioe 70
ecure lumber appropriate for the building at a point nearer than Oregon,
and it will therefor be sometime yet before that elias Of material is u
loaded at the mill site. IL is thought tn a TN plant VIII successfully
treat l6 To- of ore daily and if it makes good in that respect a iargH
n is t. be installed for the handling of both Jumbo and Red Top ores
In order to be prepared for treating the product o n company account
in the went of disappointment with the testm mill, Mr.. Taylor is inv@ti
eating a new process for the reducing of ores discovered by D. Robinson
of Leadvile, Colorado 1t is by no means certaint that tn process VIII
be adopted under the conditions mentioned, but nevertheless such a result
is possibility.
Although information regarding the new method is somewhat meagre
at this time it appears as though if successful it near a revolution in
the mining industry. Mr.. Robinson has been demonstrating his process IN
Denver recently and is reported to have done so with the best OF results.
He is said to reduce cores in six hours, and assayers and mining mn who
have witnessed the tests are authority for the statement that he does 50
successfully. The method is said to resembi tn cyanide process IN SC
far as chemicals and basins arr used, but aside from that is not closely
allied with any of the other methods in use.
The chemical formula is known only to Robinson, who guarantees
that he will SAY more values than can be done by any other process The
acids are placed in a large basin and gradually brought to a temperature
of 1870 degrees Fahrenheit. The ore is then placed in the receptacle AMI
the temperature lowered and raised gradually for three hours, and then
brought tt a boil until a solution of the ores an be seen floating IN top
of the chemical mixture. Then the secret formula is mixed in and the
liquid stirred until the metals in the oresp reciphate o the bottom of the
basin. The fluid is then drained off and in the residue are found tn
values.
PROVING UP GOLD BAR STRIKE
"A station has been cut at the 66foot level in the Gold Bar shaft
and tomorrow the work of sinking a winze IN the vein encountered last
week will be taken up, About 10 days ago re opened up in the
breast IF the 9Ofoot drift east at that depth, and gold values demon
strated ranging from $50 to $1O5 per ton, the average holding at the
first mentioned figure. Early this week assays al high as $1144 to the
ton were received, and while these returns cannot in any ense be con-
sidered as average, they ire indicative of the presence of a high grade
ore shoot in the immediate vicinity Manager Fred E. Browne states
that the winze is to be lowered a short distance and a drift extended
along the strike of the ledge in the expectation of catching shipping
values in place. 1t is also the purpose to sink the shaft another 100 feet
and again drift to the dyke. He reports that the vein is becoming more
promising every day and that values are holding WELL
vINEGRONE FRACTION
C. B. Higginson and j. T. Jones, who a few days ago secured a lease
OF the vinegrone Fraction from the Jumbo Extension Mining company,
are preparing to make a shipment from the outcrop which will probably
net them close to 800 per ton. The fraction adjoins the Red Top o the
east; and from the rapidity with which the Iessees located pay values it
would appear as though they had the vein "spotted' before they
applied for their lease. t their purpose to sink a shaft o the ledge ito
a depth of so feet and to then drift along it's trend for a shoot. In the
meantime, as they lower the shaft they will mine and sack rock that
assays better than 800 in gold to the ton.