Mineral Physiology and PhysiographyScientific Publishing Company, 1891 - 710 Seiten |
Inhalt
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Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
acid albite alike alkalies alumina aluminous silicates Amer amphibole anhydrous anorthite apatite appears aqueous atmosphere atomic basalt basic calcite carbonate of lime carbonic dioxide Chem Chemical and Geological chemistry chloritic chrysolite composition compounds condensation crenitic crust crystalline rocks crystalline schists crystals Dana Daubrée decomposition density deposits dynamic earth elements epidote eruptive rocks Essays exoplutonic farther feldspars feldspathic formulas Geol globe gneiss gneissic granitic granitic veins heat hornblendic Huronian hydrated hydrous hypothesis igneous interstellary Jour kaolin Laurentian layer limestone limonite magnesia magnesian silicates magnetite masses material matter metamorphic metres micas mineral species Mineralogy nature organic origin orthoclase oxyd palagonite pectolitic phenomena physical physiology planet plutonic portions potash present primitive protoxyds pyroxene quartz ratios regarded relations scapolites schists Science sediments serpentine silicates similar soda soluble solution strata sub-aerial decay supposed surface temperature terrestrial tion tourmaline vapor various volcanic Werner writer zeolites
Beliebte Passagen
Seite 26 - Warms in the sun, refreshes in the breeze, Glows in the stars, and blossoms in the trees ; Lives through all life, extends through all extent, Spreads undivided, operates unspent...
Seite 59 - ... and after condensation wrought into various forms; at first by the immediate hand of the Creator; and ever since by the power of nature; which, by virtue of the command, increase and multiply, became a complete imitator of the copies set her by the protoplast.
Seite 16 - I think the facts leave no doubt that the very mightiest among the chemical forces are of electric origin. The atoms cling to their electric charges, and opposite electric s<w charges cling to each other; but I do not suppose that other molecular forces are excluded, -working directly from atom to atom.
Seite 19 - The colloidal is, in fact, a dynamical state of matter, the crystalloidal being the statical condition. The colloid possesses Energia. It may be looked upon as the probable primary source of the force appearing in the phenomena of vitality. To the gradual manner in which colloidal changes take place (for they always demand time as an element) may the characteristic protraction of chemico-organic changes also be referred.
Seite 59 - Perhaps the whole frame of nature may be nothing but various contextures of some certain ethereal spirits or vapours, condensed as it were by precipitation...
Seite 115 - We conceive that the earth's solid crust of anhydrous and primitive igneous rock is everywhere deeply concealed beneath its own ruins, which form a great mass of sedimentary strata permeated by water. As heat from beneath invades these sediments, it produces in them that change •which constitutes normal metamorphism. These rocks at a sufficient depth are necessarily in a state of igneo-aqueous fusion, and...
Seite 3 - First, the knowledge of things, as they are in their own proper beings, their constitution, properties, and operations; whereby I mean not only matter and body, but spirits also, which have their proper natures, constitutions, and operations, as well as bodies.
Seite 53 - The recent researches of Henry Ste. -Claire Deville and others go far to show that this breaking up of compounds, or dissociation of elements by intense heat, is a principle of .universal application ; so that we may suppose that all the elements which make up the sun or our planet would, when so intensely heated as to be in...
Seite 608 - River proper. -It would be quite superfluous for me to add one word in support of the opinion of the most able stratigraphical geologist of the American continent" Paleontology and stratigraphy here came into conflict, and it was not till in 1860, when Mr.
Seite 58 - But it is not to be -supposed that this medium is one uniform matter, but composed partly of the main phlegmatic body of ether, partly of other various ethereal spirits, much after the manner that air is compounded of the phlegmatic body of air intermixed with various vapours and exhalations.