The Naturalist in NicaraguaJ. M. Dent & Sons, 1911 - 306 pages |
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Page 70
... gold per ton . The gold does not occur pure , but is a natural alloy of gold and silver , contain- ing about three parts of the former to one of the latter . Besides this metallic alloy ( to which , for brevity , I shall , in the ...
... gold per ton . The gold does not occur pure , but is a natural alloy of gold and silver , contain- ing about three parts of the former to one of the latter . Besides this metallic alloy ( to which , for brevity , I shall , in the ...
Page 72
... gold they contained in the lode below that worn away . We have seen that in the decomposed parts of the lode the gold exists in loose fine grains . During the wet season water percolates freely from the surface down through the lodes ...
... gold they contained in the lode below that worn away . We have seen that in the decomposed parts of the lode the gold exists in loose fine grains . During the wet season water percolates freely from the surface down through the lodes ...
Page 74
... gold is caught by the mercury , for which it has a great affinity , and accumulates as amalgam on the copper plates , from which it is cleaned off every twelve hours . The sand and water then pass over inclined tables covered with ...
... gold is caught by the mercury , for which it has a great affinity , and accumulates as amalgam on the copper plates , from which it is cleaned off every twelve hours . The sand and water then pass over inclined tables covered with ...
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amongst ancient animals ants Atlantic attacks beautiful beetles birds branches bushes butterflies carried cattle Central America Chontales colour continued couvade covered crossed dark Depilto Ecitons feet flowers forest fresh-water fruit glacial period gold grass green Greytown ground hills humming-birds Indians inhabitants insects islands Jinotega journey Juigalpa lake land larvæ leaf leaf-cutting ants leaves Libertad live lodes longicorn look maize Masaya Matagalpa Mexico miles mines mountain mules Nahuatls natives nearly nest Nicaragua night numerous o'clock Ocotal passed plains plants prey probably quartz quartz veins rain range reached resemblance Rio Frio river road rocks rocky San Ubaldo Santo Domingo savannahs seen side slope soon Spaniards species spiders steep stones surface Teustepe told Totagalpa town trachyte travelling trees tropical America valley variety vegetation Velasquez wasps whilst wings yellow young