The Naturalist in Nicaragua |
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Page 68
The gold - mines of Santo Domingo are in veins or lodes of auriferous quartz that
run parallel to each other , and are so numerous that across a band more than a
mile in width one may be found every fifty yards . All that have been worked vary
...
The gold - mines of Santo Domingo are in veins or lodes of auriferous quartz that
run parallel to each other , and are so numerous that across a band more than a
mile in width one may be found every fifty yards . All that have been worked vary
...
Page 70
their upper portions than below , but to be the effect of the decomposition and
wearing down of the higher parts , and the concentration of the gold they
contained in the lode below that worn away . We have seen that in the
decomposed parts ...
their upper portions than below , but to be the effect of the decomposition and
wearing down of the higher parts , and the concentration of the gold they
contained in the lode below that worn away . We have seen that in the
decomposed parts ...
Page 72
Nearly the whole of the free 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 ...
Nearly the whole of the free 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 ...
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America amongst ancient animals ants appear attacks beautiful beetles believe birds body branches brought called carried cattle Central America clear close colour common continued covered crossed dark distance excepting feet flowers followed forest four fruit glacial gold grass green ground growing head hills hundred Indians inhabitants insects islands lake land latter leaves less live look maize miles mines mountain mules natives natural nearly nest never Nicaragua night numerous once origin passed plains plantains plants probably protection quartz range reached reason resemblance river road rocks running Santo Domingo savannahs seen side sometimes soon species stones surface taken told town travelling trees tropical turned valley variety veins wasp whilst whole wings young