The American Journal of Science and ArtsS. Converse, 1878 |
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Página 17
... upper current is generally found moving from the northwest , the supply of air which maintains an area of high barometer , must come chiefly from an area of low barometer situated on its west or northwest side . This conclusion is ...
... upper current is generally found moving from the northwest , the supply of air which maintains an area of high barometer , must come chiefly from an area of low barometer situated on its west or northwest side . This conclusion is ...
Página 18
upper Wind . Clouds . S.E. N.W. left . the center of high pressure ; and such cases are. Direction of the clouds between areas of low and high pressure . Date . Station . Date . Station . Wind . Clouds . 1872 . Dec. 24.1 Breckenridge ...
upper Wind . Clouds . S.E. N.W. left . the center of high pressure ; and such cases are. Direction of the clouds between areas of low and high pressure . Date . Station . Date . Station . Wind . Clouds . 1872 . Dec. 24.1 Breckenridge ...
Página 19
... upper clouds was such as would carry them to the right of the high center ; and such cases are designated by the term right in column fifth of the table . Generally , how- ever , the direction of the upper clouds was such as would carry ...
... upper clouds was such as would carry them to the right of the high center ; and such cases are designated by the term right in column fifth of the table . Generally , how- ever , the direction of the upper clouds was such as would carry ...
Página 21
... upper current towards the southeast , and hence the average direction of the upper current in Europe during the winter months is from about N. 52 ° W. to S. 52 ° E. In preparing the materials for this article I have been assisted by Mr ...
... upper current towards the southeast , and hence the average direction of the upper current in Europe during the winter months is from about N. 52 ° W. to S. 52 ° E. In preparing the materials for this article I have been assisted by Mr ...
Página 29
... upper surfaces , and sometimes distinct crystalline forms . These are generally simple triangular faces slightly raised , very similar in appearance to specimens sometimes found in nature . Occa- sionally several faces of the octahedron ...
... upper surfaces , and sometimes distinct crystalline forms . These are generally simple triangular faces slightly raised , very similar in appearance to specimens sometimes found in nature . Occa- sionally several faces of the octahedron ...
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acid aconitine alcohol angles Ångström anorthite antimony appear augite barometer beds Breckenridge carbon cent chemical childrenite chromosphere color comets composition contains corona crystals deposits described determined Devonian diabase diameter eosphorite fact fathoms feet feldspar forest formation Fort Sully fossils genera genus geological gives glacial glaciers gneiss grams heat hornblende hydrogen inches iron Lake latitude less limestone lines lithiophilite magnet mass Mercury metal mica miles mineral Mississippi Morosaurus mounds mountain nearly observed obtained occur orbits origin orthoclase oxide oxygen paper planet plates portion Portland potassium precipitate present pressure probably produced Professor pyroxene quantity quartz region Report resonator River rocks salt saussurite schist SCI.-THIRD SERIES shales side Silurian solar spectrum solution species specific gravity specimens substance surface temperature thickness tion trees triclinic triploidite tube upper valley vapor velocity vibrations volume weight
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Página 334 - Additions, the Substance of a Course of Lectures delivered at the Royal Institution of Great Britain in 1874.
Página 445 - ... to have a term which shall refer solely to the composition and thermodynamic state of any such body without regard to its quantity or form. We may call such bodies as differ in composition or state different phases of the matter considered, regarding all bodies which differ only in quantity and form as different examples of the same phase. Phases which can exist together, the dividing surfaces being plane, in an equilibrium which does not depend upon passive resistances to change, we shall call...
Página 389 - ... trade winds stronger than the north-east, and compel them to blow over upon the northern hemisphere, as far probably as the Tropic of Cancer. The result is that all the great equatorial currents of the ocean are impelled into the northern hemisphere, which thus, in consequence of the immense accumulation of warm water, has its temperature raised, and snow and ice to a great extent must then disappear from the Arctic regions. When the precession of the equinoxes brings round the winter solstice...
Página 184 - ... Atlantic in species. It has not half as many Maples, nor Ashes, nor Poplars, nor Walnuts, nor Birches, and those it has are of smaller size and inferior quality ; it has not half as many Oaks ; and these and the Ashes are of so inferior economical value, that (as we are told) a passable wagon-wheel cannot be made of California wood, nor a really good one in Oregon.
Página 389 - When the eccentricity of the earth's orbit is at a high value, and the northern winter solstice is in perihelion, agencies are brought into operation which make the south-east trade winds stronger than the north-east, and compel them to blow over upon the northern hemisphere, as far probably as the Tropic of Cancer. The result is that all the great equatorial currents of the ocean are impelled into the northern hemisphere, which thus, in consequence of the immense accumulation of warm water, has...
Página 89 - From the Gulf of Mexico to the Gulf of St. Lawrence, the amount of rain decreases moderately and rather regularly from south to north ; but, as less is needed in a cold climate, there is enough to nourish forest throughout.
Página 290 - It is easy to speculate on the causes of such behavior, and it may be suggested that the reason of the non-appearance of a dark line may be, that the intensity of the light from a great thickness of ignited oxygen overpowers the effect of the photosphere...
Página 448 - The stability of any phase with respect to continuous changes depends upon the same conditions with respect to the second and higher differential coefficients of the density of energy regarded as a function of the density of entropy and the densities of the several components, which would make the density of energy a minimum, if the necessary conditions with respect to the first differential coefficients were fulfilled.