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“...proportion of gold now being 5 in 100,000, whereas a few
years ago it was as high as 2 in 10,000. The scheme of treatment is
somewhat similar to that described as in force at the Fujita mill, but
owing to the hard nature of the ore, stamps are used here, their
number being 10 of 800 lbs. each in one mill and 50 of 600 lbs. each in
another, while in addition there are also two Huntington mills.
The number of Japanese miners is 260 and mill hands 109, while
about 500 natives are employed, of whom only 25 are miners, the
rest being principally transport coolies.
The working expenses of the mine and mills are said to be about
4,500Z. a month, and the figures regarding some of the necessary
articles imported are as follows :Cyanide of potassium, 2,000 to
3,000 lbs. a month, costing 10£
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“...tailings were swept away.
The number of Japanese employed at this mine is 380, while the
natives total 700, but most of these are coolies who are employed to
transport machinery, timber, pig iron, &c., from Ginaryo ; the
distance is only about 5 miles, but the ascent is exceedingly steep
and the road bad and slippery ; coolies receive Is. 2d. for every
picul (133J lbs.) they carry on this journey.
The new plant will consist of 4 crushers of 8 horse-power and
8 of 2 horse-power, 12 Huntington mills, 8 batteries of 5 stamps
(800 lbs. weight) with a proportionate amount of amalgamated
copper plates, settlers, Wilfrey concentrators, spitzkasten, storage
tanks, leading vats (which will number 13, 5 feet in depth and 30 feet
in diameter), gold solution tanks and zinc boxes.
For convenience of reference two tables are annexed showing the
total output of each of the three mines during the past three years,
as well as some other particulars which have not appeared in the
body of this report.
In...”
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