The Naturalist in Nicaragua: A Narrative of a Residence at the Gold Mines of Chontales; Journeys in the Savannahs and Forests. With Observations on Animals and Plants in Reference to the Theory of Evolution of Living FormsJ. Murray, 1874 - 403 pages |
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Page 88
... to one of the latter . Besides this metallic alloy ( to which , for brevity , I shall , in the remarks I have to make , give its common designa- 1 Ch . VI . ] QUARTZ LODES . 89 tion. 88 [ Ch . VI . THE NATURALIST IN NICARAGUA .
... to one of the latter . Besides this metallic alloy ( to which , for brevity , I shall , in the remarks I have to make , give its common designa- 1 Ch . VI . ] QUARTZ LODES . 89 tion. 88 [ Ch . VI . THE NATURALIST IN NICARAGUA .
Page 89
... QUARTZ LODES . 89 tion of gold ) , the quartz lodes contain sulphate of silver , peroxide of manganese , peroxide of iron , sulphides of iron and copper , and occasionally ores of lead . The quartz is generally very friable , full of ...
... QUARTZ LODES . 89 tion of gold ) , the quartz lodes contain sulphate of silver , peroxide of manganese , peroxide of iron , sulphides of iron and copper , and occasionally ores of lead . The quartz is generally very friable , full of ...
Page 90
... quartz veins ; that is , the parts next the existing surface , and has , also , Ch . V1 . ] QUARTZ LODES . 91 perhaps 90 [ Ch . VI . THE NATURALIST IN NICARAGUA .
... quartz veins ; that is , the parts next the existing surface , and has , also , Ch . V1 . ] QUARTZ LODES . 91 perhaps 90 [ Ch . VI . THE NATURALIST IN NICARAGUA .
Page 91
... QUARTZ LODES . 91 perhaps , originated the belief that auriferous lodes deteriorate in value in depth . I at one time , after having studied the auriferous quartz veins of Australia , advocated this theory which was first insisted upon ...
... QUARTZ LODES . 91 perhaps , originated the belief that auriferous lodes deteriorate in value in depth . I at one time , after having studied the auriferous quartz veins of Australia , advocated this theory which was first insisted upon ...
Page 92
... quartz is then excavated above the topmost level , and thrown down the shafts to the lowest , where it is received into waggons and conveyed to the reduction works . As both the ore and the enclosing rocks are greatly decomposed and ...
... quartz is then excavated above the topmost level , and thrown down the shafts to the lowest , where it is received into waggons and conveyed to the reduction works . As both the ore and the enclosing rocks are greatly decomposed and ...
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amongst ancient animals ants Atlantic attacks beautiful beetles birds branches brook bushes butterflies carried cattle Central America Chontales colour continued couvade covered crossed dark descended dogs Ecitons epiphytes feet flowers forest fresh-water fruit glacial period glands grass green Greytown ground growing hills humming-birds Indians inhabitants insects Jinotega Juigalpa lake land larvæ leaf-cutting ants leaves Libertad lodes look maize Matagalpa Mestizos miles mines mountain mules Nahuatls natives nearly nests never Nicaragua night numerous o'clock Ocotal passed Peña Blanca plains plants probably quartz rain range reached resemblance Rio Frio river road rock rocky San Ubaldo Santo Domingo savannahs seen shrubs side slope soon Spaniards species spider steep sting stones surface tion told town trachyte travelling trees trogons tropical America valley variety vegetation veins Velasquez wasp whilst wings yellow young