The American Journal of Science and ArtsS. Converse, 1878 |
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Página v
... Positions of the Comet discovered by Mr. Lewis Swift ; by C. H. F. PETERS , .. XXII . - Waverly Group in Central Ohio ; by L. E. HICKS , 621 XXIII . - On some Primordial Fossils from Southeastern New- 215 224 foundland ; by J. F. ...
... Positions of the Comet discovered by Mr. Lewis Swift ; by C. H. F. PETERS , .. XXII . - Waverly Group in Central Ohio ; by L. E. HICKS , 621 XXIII . - On some Primordial Fossils from Southeastern New- 215 224 foundland ; by J. F. ...
Página 24
... position about 45 ° . It is therefore not possi- ble to obtain continuous rota- tion by means of acoustic attraction , as I have shown by nume- rous experiments . The resonator , 1 , continues to move by reason of its inertia and ...
... position about 45 ° . It is therefore not possi- ble to obtain continuous rota- tion by means of acoustic attraction , as I have shown by nume- rous experiments . The resonator , 1 , continues to move by reason of its inertia and ...
Página 38
... position as to correspond with the eosphorite , the pyramid s being identical in the two , as are also the prisms . Fig . 3 shows a common form of the Tavistock crystals ; other crystals have the plane b present and resemble fig . 2 ...
... position as to correspond with the eosphorite , the pyramid s being identical in the two , as are also the prisms . Fig . 3 shows a common form of the Tavistock crystals ; other crystals have the plane b present and resemble fig . 2 ...
Página 44
... position of the optic axes could not be fixed . The crystals show no perceptible absorp- tion phenomena . Chemical composition . - Triploidite was analyzed by Mr. Penfield . This hydrous phosphate was found to contain iron and manganese ...
... position of the optic axes could not be fixed . The crystals show no perceptible absorp- tion phenomena . Chemical composition . - Triploidite was analyzed by Mr. Penfield . This hydrous phosphate was found to contain iron and manganese ...
Página 49
... position as the antecedent halide ; for , as in the case above shown , both the dinitrobromphenols give picric acid on nitrition . * In many cases the addition of concentrated hydrochloric acid to a hot , concen- trated solution of a ...
... position as the antecedent halide ; for , as in the case above shown , both the dinitrobromphenols give picric acid on nitrition . * In many cases the addition of concentrated hydrochloric acid to a hot , concen- trated solution of a ...
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Términos y frases comunes
acid aconitine alcohol angles Ångström anorthite antimony appear barometer beds Breckenridge carbon cent chemical childrenite chromosphere coast 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
Pasajes populares
Página 392 - SOUND : a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the use of Students of every age.
Página 84 - CLIFFORD — THE ELEMENTS OF DYNAMIC. An Introduction to the Study of Motion and Rest in Solid and Fluid Bodies.
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.