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Near Manado are some mines of auriferous quartz, of which the commander was able to obtain a specimen, and in the interior is the lake of Manado, said to be of immense depth, and which is the source of the torrent of the same name that dashes in the form of a magnificent waterfall over a basalt rock eighty feet high, barring its progress to the sea.
Nor is it only in creeks with auriferous deposit or expectation of auriferous deposit that this reduplication occurs; there are Bear Creeks, 16; Boulder Creeks, 13; Moose Creeks, 13; Willow Creeks, 17; Canyon Creeks, 12; Glacier Creeks, 14.
The western group, Mr. Foote tells us, is far poorer in auriferous localities than either of the others, and they are scattered widely apart. He examined in all seven localities. Of the first locality examined, he says that the geological features are all favourable to the occurrence of gold, and that the locality is worthy of very careful prospecting.
You get the very spirit of the meaning of that country when you see Little Pete feeding his sheep in the red, choked maw of an old vent, a kind of silly pastoral gentleness that glazes over an elemental violence. Beyond the craters rise worn, auriferous hills of a quiet sort, tumbled together; a valley full of mists; whitish green scrub; and bright, small, panting lizards; then Jimville.
These last-named rocks are auriferous in the Quebrada del Oro, near Guigue; and between Villa de Cura and the Morros de San Juan, in the mountain of Chacao. The gold is contained in pyrites, which are found sometimes disseminated almost imperceptibly in the whole mass of the gneiss,* and sometimes united in small veins of quartz.
In spite of vague rumours of the existence of gold, and the report of Austin in 1854, who passed close to what is now the town of Cue and noticed auriferous indications, it was not until 1868 that an authenticated find of gold was made at Mallina, in the Nor'-West.
He examined ten auriferous tracts or localities in the central group, beginning with the Holgen workings near the southern border of the province, and ending with the Hale Kalgudda locality near the northern border, and reports more or less favourably on five out of the ten localities in question.
According to the fabulous stories of the natives, the islets of mica-slate, situate in lake Amucu, augment by their reflection the lustre of the nebulae of the southern sky. How can we infer the absolute sterility of the primitive rocks of Guiana from testimony merely negative, from the circumstance that during a journey of three months we saw no auriferous vein appearing above the soil?
In the auriferous alluvium of Russia, California, and Australia, the bones of extinct land-quadrupeds have been met with, those of the mammoth being common in the gravel at the foot of the Ural Mountains, while in Australia they consist of huge marsupials, some of them of the size of the rhinoceros and allied to the living wombat.
In following the valley of Caracas eastward beyond Caurimare, on the road to Caucagua, we reach a mountainous and woody country, where a great quantity of charcoal is now made, and which anciently bore the name of the Province of Los Mariches. In these eastern mountains of Venezuela, the gneiss passes into the state of talc. It contains, as at Salzburg, lodes of auriferous quartz.
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