The Naturalist in NicaraguaJ. M. Dent & Sons, 1911 - 306 pages |
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Page 76
... rocks , and that even some of the trappean dykes themselves are auriferous . Several years ago , I endeavoured to show that mineral veins in granitic districts occurred in regular sequences , with certain intrusive rocks , as follows ...
... rocks , and that even some of the trappean dykes themselves are auriferous . Several years ago , I endeavoured to show that mineral veins in granitic districts occurred in regular sequences , with certain intrusive rocks , as follows ...
Page 79
... rocks and various chemical re- actions , has effected a re - arrangement of the mineral contents of the strata , so that by molecular movements , the meta- morphic crystalline rocks , including interstratified granites and greenstones ...
... rocks and various chemical re- actions , has effected a re - arrangement of the mineral contents of the strata , so that by molecular movements , the meta- morphic crystalline rocks , including interstratified granites and greenstones ...
Page 199
... rocks . Great , bare , rounded masses of hard quartzite protruded through the scanty soil , and in the river were enormous boulders of granite - like gneiss . Depilto is only nine miles from Ocotal , but we took three hours to reach it ...
... rocks . Great , bare , rounded masses of hard quartzite protruded through the scanty soil , and in the river were enormous boulders of granite - like gneiss . Depilto is only nine miles from Ocotal , but we took three hours to reach it ...
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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