The American Journal of Science, Volumen67J.D. & E.S. Dana, 1854 |
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Página vii
... Species , by JAMES D. DANA , 430. — On Descloizite , a new Mineral Species , by M. A. DAMOUR , 434. - Ancient Lake in the Colorado Desert , 435. - Quicksilver Mine of Almaden , California , by W. P. BLAKE , 438. - Conistonite , 440 ...
... Species , by JAMES D. DANA , 430. — On Descloizite , a new Mineral Species , by M. A. DAMOUR , 434. - Ancient Lake in the Colorado Desert , 435. - Quicksilver Mine of Almaden , California , by W. P. BLAKE , 438. - Conistonite , 440 ...
Página 78
... species given is very large , and there is a mathematical exactness and system in the selection of those which are mentioned , according with the methods of cal- culation . The circles filled in with dots , accompanying the de ...
... species given is very large , and there is a mathematical exactness and system in the selection of those which are mentioned , according with the methods of cal- culation . The circles filled in with dots , accompanying the de ...
Página 79
... species . He next classifies the names according to their derivation , and explains their ety- mology . He presents , First , a catalogue of those names that are of mythological origin . Second , leaving the gods and mythology , he ...
... species . He next classifies the names according to their derivation , and explains their ety- mology . He presents , First , a catalogue of those names that are of mythological origin . Second , leaving the gods and mythology , he ...
Página 80
... species should be retained , only when correctly formed in accordance with these principles : and he gives a list of some names that have been more or less recently proposed as substitutes for earlier objectionable names , the gene- ral ...
... species should be retained , only when correctly formed in accordance with these principles : and he gives a list of some names that have been more or less recently proposed as substitutes for earlier objectionable names , the gene- ral ...
Página 81
... species . Add to Prof. von Kobell's princi- ples , one more , -truth and not self as the end of every investiga- tion , and the remedy would be nearly complete . 3. The " Krystallo - Chemische Mineralsystem of Gustav Rose . " Prof. Rose ...
... species . Add to Prof. von Kobell's princi- ples , one more , -truth and not self as the end of every investiga- tion , and the remedy would be nearly complete . 3. The " Krystallo - Chemische Mineralsystem of Gustav Rose . " Prof. Rose ...
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Términos y frases comunes
acid anal angle animals appears Arago atomic weights auroral auroral light azoic beds Berzelius body carbon Chabazite character chlorine color compounds contain crystalline crystals cylinder deposits described diameter distinct dorsal elements Esox examination fact feet feldspar fishes flora formation formula fossils genera genus geological glass globules hail heat hornblende hydrogen Idocrase inches iron islands isomorphism known Lake Lake Superior less light lime limestone lines lower magnetic Malpighian body mass metal microscope miles mineral natural nearly object observed obtained occur organic oxyd oxygen peculiar plane plants portion potash present prism Prof quartz Rafinesque ratio regard relation remarkable resembles river rocks sandstone Scapolite SECOND SERIES seen side silica Silurian slates species specific gravity specimens stones strata structure substance sulphur surface temperature thickness tion Tourmaline traced true tube upper viviparous whole Wolffian bodies XVII Zealand
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Página 62 - When these germs have reached the size of 30^th of an inch in diameter, there appears on each, near one end, a yellowish vitelluslooking mass or spot, which is composed of large yellowish cells, which in size and general aspect are different from those constituting the germ proper. This yellow mass increases part passu with the germ, and at last lies like a cloud over and concealing one of its poles.
Página 136 - Schyf, or mill, which revolves from two thousand to three thousand times per minute. The diamond is fixed in a ball of pewter at the end of an arm, resting upon the table in which the plate revolves ; the other end, at which the ball containing the diamond is fixed, is pressed upon the wheel by moveable weights at the discretion of the workman.
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