The American Journal of Science and ArtsS. Converse, 1879 |
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Página 6
... lower stratum of the air was sensible on Mt. Washington for a few hours only , and then subsided . No. 88 is the only one of these cases in which the wind on Mt. Washington blew from the east quarter during more than two observations ...
... lower stratum of the air was sensible on Mt. Washington for a few hours only , and then subsided . No. 88 is the only one of these cases in which the wind on Mt. Washington blew from the east quarter during more than two observations ...
Página 16
... Lower Silurian rocks . Before examining into the geological features of this interesting region , it will be well to take a bird's - eye view of its topography . ( 1. ) It lies between two elevated mountain ranges -- the Blue Ridge on ...
... Lower Silurian rocks . Before examining into the geological features of this interesting region , it will be well to take a bird's - eye view of its topography . ( 1. ) It lies between two elevated mountain ranges -- the Blue Ridge on ...
Página 18
... Lower Silurian limestones . Less extensive ridges also inter- rupt the continuity on the northwest side ; and some of them , like the House Mountain , * across which the accompanying section passes , present striking examples of ...
... Lower Silurian limestones . Less extensive ridges also inter- rupt the continuity on the northwest side ; and some of them , like the House Mountain , * across which the accompanying section passes , present striking examples of ...
Página 22
... lower layers of which are more brittle than the main mass lying between them . This is succeeded by a much thicker mass of brown , purple and yellow shales ( c ) , with thin beds of brittle sandstones . This mass is extensively ...
... lower layers of which are more brittle than the main mass lying between them . This is succeeded by a much thicker mass of brown , purple and yellow shales ( c ) , with thin beds of brittle sandstones . This mass is extensively ...
Página 24
... lower beds ; ( 2 ) by one and sometimes two beds of coarse , brown , friable sandstone between layers of light - colored limestones , and ( 3 ) by a remarkable bed of chert near its upper limit . This hard , flinty , durable rock has so ...
... lower beds ; ( 2 ) by one and sometimes two beds of coarse , brown , friable sandstone between layers of light - colored limestones , and ( 3 ) by a remarkable bed of chert near its upper limit . This hard , flinty , durable rock has so ...
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Palavras e frases frequentes
acid apatite appears basalt bowlders bright lines C. H. F. PETERS carbon carpels chabazite clay coal bed color column containing County Cuvier Dawson density deposits described determined Devonian distance drift earth east eosphorite Eozoon Eozoon Canadense equation erbia eruption experiments feet focal formation formula fossil genus geological gives glacial glass gravel heat height hills inches iron Island Journal light limestone lithiophilite lower magnetic memoir miles mineral molecules moraine Mountain nearly nitrification observed obtained oxide oxygen Palæontology paper phosphorescence photographs plane plants plates pole portion premolar present pressure probably Professor Radiant Matter rays region ridges River rocks sand sandstone schist SCI.-THIRD SERIES shales side Silurian solution species specific gravity specimens strata surface temperature terminal moraine thickness Tinodon tion tube upper valley vapor volume wave length wind
Passagens conhecidas
Página 490 - The publications of the United States Geological Survey are issued in accordance with the statute approved March 3, 1879, which declares that — 1 ' Thepublications of the Geological Survey shall consist of the annual report of operations, geological and economic maps illustrating the resources and classification of the lands, and reports upon general and economic geology and paleontology.
Página 489 - And all collections of rocks, minerals, soils, fossils, and objects of natural history, archseology, and ethnology, made by the Coast and Interior Survey, the Geological Survey, or by any other parties for the Government of the United States, when no longer needed for investigations in progress, shall be deposited in the National Museum.
Página 330 - I declare that I had no intention to contradict the text of Scripture ; that I believe most firmly all therein related about the creation, both as to order of time and matter of fact ; I abandon everything in my book respecting the formation of the earth, and, generally, all which may be contrary to the narration of Moses...
Página 490 - Survey, and the classification of the public lands and examination of the Geological Structure, mineral resources and products of the national domain...
Página 339 - History of the Fossil Fruits and Seeds of the London Clay," appeared in 1843. Hooker's memoir " On the Vegetation of the Carboniferous Period as compared with that of the present day," published in 1848, was an important contribution to the science.
Página 407 - of the Palaeozoic Period, with Critical Descriptions of Illustrative Species. Illustrated with 15 Lithograph Plates and numerous Engravings.
Página 260 - Yet all these were when no man did them know, Yet have from wisest ages hidden beene; And later times thinges more unknowne shall show. Why then should witlesse man so much misweene, That nothing is, but that which he hath seene?
Página 88 - Annals of the Lyceum of Natural History of New York, vol.
Página 329 - The first of these obnoxious passages, and the only one relating to geology, was as follows : — ' The waters of the sea have produced the mountains and valleys of the land — the waters of the heavens, reducing all to a level, will at last deliver the whole land over to the sea, and the sea successively prevailing over the land, will leave dry new continents like those which we inhabit.
Página 252 - FIG. 2. metallic side of the vanes, the mica side remaining dark. As the pressure diminishes, a dark space is seen to separate the violet halo from the metal. At a pressure of half a millim. this dark space extends to the glass, and positive rotation commences. On continuing the exhaustion the dark space further widens out and appears to flatten itself against the glass, when the rotation becomes very rapid.