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 FormsE. Bumpus, 1888 - 403 pages |
From inside the book
Page 85
... veins — Mode of occurrence of the gold— Lodes richer next the surface than at lower depths - Excavation and reduction of the ore - Extraction of the gold- " Mantos " - Origin of mineral veins - Their connection with intrusions of ...
... veins — Mode of occurrence of the gold— Lodes richer next the surface than at lower depths - Excavation and reduction of the ore - Extraction of the gold- " Mantos " - Origin of mineral veins - Their connection with intrusions of ...
Page 86
... veins now form the crests of many of the ranges , but are everywhere cut through by the lateral valleys . The beds of doleryte lie at low angles , through which the quartz veins cut nearly vertically . Excepting that they are very ...
... veins now form the crests of many of the ranges , but are everywhere cut through by the lateral valleys . The beds of doleryte lie at low angles , through which the quartz veins cut nearly vertically . Excepting that they are very ...
Page 87
... veins , owing their origin to cracks or fractures in the rocks that have been filled up with mineral substances through chemical , thermal , aqueous , or plutonic agencies . In depth , the bottom of fissure - veins has never been ...
... veins , owing their origin to cracks or fractures in the rocks that have been filled up with mineral substances through chemical , thermal , aqueous , or plutonic agencies . In depth , the bottom of fissure - veins has never been ...
Page 90
... veins , set at liberty from its matrix by the decomposition of the ore , and concentrated by degrada- tion , is probably the reason of the great richness of many of what are called the caps of quartz veins ; that is , the parts next the ...
... veins , set at liberty from its matrix by the decomposition of the ore , and concentrated by degrada- tion , is probably the reason of the great richness of many of what are called the caps of quartz veins ; that is , the parts next the ...
Page 91
... veins of Australia , advo- cated this theory , which was first insisted upon by Sir R. I. Murchison , but further experience in North Wales , Nova Scotia , Brazil , and Central America , has led me to doubt its correctness , excepting ...
... veins of Australia , advo- cated this theory , which was first insisted upon by Sir R. I. Murchison , but further experience in North Wales , Nova Scotia , Brazil , and Central America , has led me to doubt its correctness , excepting ...
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Common terms and phrases
amongst ancient animals ants Atlantic attacks beautiful beetles birds branches brushwood bushes butterflies carried cattle Central America Chontales colour continued couvade covered crossed dark Depilto dogs Ecitons feet flowers forest fresh-water fruit glacial period gold grass green Greytown ground hills Indians inhabitants insects islands Jinotega journey Juigalpa lake land larvæ 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 tion told Totagalpa town trachyte travelling trees trogons tropical America valley variety vegetation Velasquez wasp whilst wings yellow young