Contributions to the History of American Geology |
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alluvial American Journal anticlinal appeared appointed argillaceous slate argillite Azoic basalt beds bowlders Carboniferous character clay coal colored geological map Connecticut contained Cretaceous crust deposits described Devonian drift earth Eaton Edward Hitchcock elevation Emmons Eocene expedition fact feet fissures formation fossils geological survey geologist glacial glaciers gneiss granite graywacke greenstone Hitchcock Hudson igneous iron Island Journal of Science Lake Superior land lime limestone lithological Lower Maclure mass material melaphyr metamorphic mineralogy minerals Miocene Mississippi Mountains nature northern noted observations ocean octavo Ohio origin Owen paleontology Paleozoic paper period Permian phenomena plates portion position primitive Professor published quartz recognized red sandstone referred regarded region River rocks Rogers sand secondary shell Silliman Silurian slate soil species stone strata surface Tertiary theory tion transition trap Triassic Upper Valley veins views volcanic volume western wrote York
Popular passages
Page 576 - In whatever direction a body moves on the surface of the earth, there is a force arising from the earth's rotation, which deflects it to the right, in the northern hemisphere, but to the left, in the southern.
Page 681 - Now, who shall arbitrate? Ten men love what I hate, Shun what I follow, slight what I receive; Ten, who in ears and eyes Match me: we all surmise, They this thing, and I that: whom shall my soul believe? Not on the vulgar mass Called "work...
Page 578 - The river preserved its level, but mountains were lifted up; as the saw revolves on a fixed pivot, while the log through which it cuts is moved along. The river was the saw which cut the mountains in two.
Page 365 - ... next Congress at an early day, a plan for the sale of the public mineral lands, having reference as well to the amount of revenue to be derived from them and their value as public property as to the equitable claims of individuals upon them; and that he at the same time communicate to Congress all the information in possession of the Treasury Department relative to their location, value, productiveness, and occupancy; and that he cause such further information to be collected and surveys to be...
Page 545 - Catalogue and Index of North American Geology. Of these, the most important and the only one that need here be considered is one on the geology of the survey for the extension of the Union Pacific Railroad from the Smoky Hill River, Kansas, to the Rio Grande.
Page 270 - For yet seven days, and I will cause it to rain upon the earth forty days and forty nights; and every living substance that I have made will I destroy from off the face of the earth.
Page 534 - Now, I have no hesitation in asserting, from my own observations as well as from those of others, that for the southwest striation the direction was from the ocean toward the interior, against the slope of the St Lawrence valley.
Page 226 - ... the turning of the new-formed globe upon its axis, and the greatest diameter of the shell would be in its equator. If by any accident afterwards the axis should be changed...
Page 542 - Still again, in 1868, Shaler (having in the meantime been elected professor of geology in Harvard University) brought up before the Society the matter of the, nature of the movements involved in the changes of level of shore lines, and this time with particular reference to changes coincident with or subsequent to the Glacial period.
Page 401 - Hitchcock, it will be noticed, with his usual caution, felt that both causes might have been instrumental in producing the dip observed. At the same session at which Hitchcock read the paper noted above, Benjamin Silliman, jr., presented a report On the Intrusive Trap of the New Red Sandstone of Connecticut.