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Ch. 6: Diamond

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190
A POPULAR TREATISE ON GEMS.
in the month of November, and continuing until the „ mencement of the rainy season, more especially in the bed of the Mahanudi on its left shore, where some other small rivers, Maund, Reloo, Eeb, &c, empty into it. Four or five hundred individuals, consisting of men, women, and children, are examining continually all the spots of the river from Cauderpoor to Longpoor, a distance of about one hundred and twenty miles, till the stream is impeded by the rocks ; and likewise all excavations or other cavities of the beds where any alluvial deposits may be traced. All their implements consist of a pickaxe (ankova), a board five feet in length, excavated three inches in the middle, but provided with its border (daer), and a smaller similar implement, called by them kootla, both of the shape of a shovel. The process is very simple : they first dig the earth with the axe, and let it accumulate in heaps.along the shore; the women afterwards take it on their large shovels, and allow the water to run over the earth; they then pick the flints and coarse gravel out of it, and re­moving the residue on smaller shovels, spread it out, and examine it very carefully, separating from it the diamonds and grains of gold. Another method pursued in the East Indies is to surround a small plain where the diamonds are expected to be found, with a wall two feet high, under which water is permitted to run by several openings ; after having thrown a good deal of earth within the wall, and having allowed the water to pass through two or three times, the larger stones are picked out, the residue dried, and the diamonds selected as before.
The washing establishments of the diamond in Brazil, particularly in the celebrated district Tejuco, on the Rio San Francisco and its adjoining smaller rivers, are con­ducted in the following manner:
In order to get at the bottom, or soil of the river, means
Ch. 6: Diamond Page of 515 Ch. 6: Diamond
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