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Updated: July 3, 2025
Their exploitation is more difficult, and before putting them into the furnaces it is necessary to submit them to breakage and screening; so the use of them is more limited. The first variety contains less iron and more gangue, but, per contra, possesses much oxide of manganese.
Some seventeen years since I was engaged on the construction of a dry amalgamator in which sublimated mercury was passed from a retort through the descending gangue in a vertical cylinder, the material thence falling through an aperture into a revolving settler, the object being to save water on mines in dry country.
With regard to that found in quartz lodes finely disseminated through the gangue, the change was brought about by the same agency which caused the silicic acid to solidify and take the form in which we now see it in the quartz veins.
Lewis & the Indian Chief walked on Shore, Soon after I discovered Great numbers of Goats in the river, and Indians on the Shore on each Side, as I approached or got nearer I discovered boys in the water Killing the Goats with Sticks and halling them to Shore, Those on the banks Shot them with arrows and as they approachd. the Shore would turn them back of this Gangue of Goats I counted 58 of which they had killed & on the Shore, one of our hunters out with Cap Lewis killed three Goats, we passed the Camp on the S. S. and proceeded 1/2 mile and Camped on the L. S. many Indians came to the boat to See, Some Came across late at night, as they approach they hollowed and Sung, after Staying a Short time 2 went for Some meat, and returned in a Short time with fresh & Dried Buffalow, also goat, those Indians Strayed all night, They Sung and was verry merry the greater part of the night
But the garrison was not strong enough to keep the country quiet, and the climate proved deadly to white men. The 24 sappers and 60 linesmen extracted nearly 4,000 lbs. of gangue per diem, when the English manager and his assistant, with four of the ten miners died, and the plant was destroyed by fire. In 1863 the coast was still in confusion.
A boat was despatched to Cape Remarkable, where Bougainville said he had seen fossil shells, which, however, turned out to be nothing but little pebbles imbedded in a calcareous gangue. Interesting experiments were made with the thermometrograph, or marine thermometer, at 290 fathoms, without reaching the bottom, at less than two miles from land.
They are interesting to study and they look well in museums, but they do not pay so well as the "stamp" copper which is found in humble little bits in the gangue, or the rock of the vein, and has to be pounded in a stamp mill. This gangue is dug out and broken up as in mines of other metals.
Before any plan is adopted for treating the ore in a new mine the management should very seriously and carefully consider the whole circumstances of the case, taking into account the quantity and quality of the lode stuff to be operated on, and ascertain by analysis what are its component parts, for, as before stated, the treatment which will yield most satisfactory results with a certain class of gangue on one mine will sometimes, even when the material is apparently similar, prove a disastrous failure in another.
I had not proceeded far before I saw a large gangue of ewes & yearlins & fawns or lambs of the bighorn, and at a distance alone I saw a ram. landed and Sent Labeech to kill the ram, which he did kill and brought him on board. this ram is not near as large as maney I have Seen. however he is Sufficiently large for a Sample I directed Bratten to Skin him with his head horns & feet to the Skin and Save all the bone.
They staggered over the sticky soil, or rather they had to jump over holes. Bouvard sat down on a mound overlooking the sea and contemplated the waves, thinking of nothing, fascinated, inert. Pécuchet brought him over to the side of the cliff to show him a serpent-stone incrusted in the rock, like a diamond in its gangue.
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