The American Journal of ScienceJ.D. & E.S. Dana, 1885 - Science |
Contents
| 1 | |
| 7 | |
| 16 | |
| 29 | |
| 36 | |
| 44 | |
| 53 | |
| 59 | |
| 369 | |
| 377 | |
| 385 | |
| 392 | |
| 399 | |
| 411 | |
| 422 | |
| 425 | |
| 69 | |
| 78 | |
| 85 | |
| 93 | |
| 103 | |
| 114 | |
| 135 | |
| 149 | |
| 157 | |
| 163 | |
| 179 | |
| 205 | |
| 223 | |
| 232 | |
| 249 | |
| 267 | |
| 269 | |
| 277 | |
| 284 | |
| 290 | |
| 300 | |
| 313 | |
| 328 | |
| 334 | |
| 346 | |
| 349 | |
| 355 | |
| 437 | |
| 444 | |
| 455 | |
| 469 | |
| 475 | |
| 486 | |
| 496 | |
| 1 | |
| 17 | |
| 34 | |
| 42 | |
| 50 | |
| 58 | |
| 72 | |
| 80 | |
| 169 | |
| 249 | |
| 266 | |
| 275 | |
| 283 | |
| 293 | |
| 300 | |
| 308 | |
| 314 | |
| 322 | |
| 328 | |
Other editions - View all
Common terms and phrases
amount animalcule appears Archæan average beds carbon cent chemical Claiborne clay color containing Cretaceous crystals curve deposits Desh determined diameter digestibility Dinoceras Dinocerata direction earthquake east Eocene error evidence experiments facts fauna feet figures formation fossils galvanometer genus Geological Survey glacial glacier gneiss grams Grms heat Huronian inch interglacial islands Jackson Journal Jurassic Lake latitude limestone lorica lower mass matter measured mica mica schist miles mineral Miocene moraines mountain nearly observed obtained occur paleontologists paper period plates portion posterior present prisms probably Professor quartzyte reef region ridges River rocks safflorite sandstone schist SCI.-THIRD SERIES shells Siberia side Silurian slates solution species specific gravity specimens sporocarps staurolites strata sulphuric acid surface temperature Tertiary thickness Tiemannite tion topaz ungulate upper Vicksburg volume weight
Popular passages
Page 191 - It proves conclusively that the brain was proportionately smaller than in any other known mammal, recent or fossil, and even less than in some reptiles. It was, in fact, the most reptilian brain in any known mammal.
Page 304 - Sannikow found the skulls and bones of horses, buffaloes, oxen, and sheep in such abundance that these animals must formerly have lived there in large herds. At present, however, the icy wilderness produces nothing that could afford them nourishment, nor would they be able to endure the climate. Sannikow concludes that a milder climate must formerly have prevailed here, and that these animals may therefore have been contemporary with the mammoth, whose remains are found in every part of the island."...
Page 156 - ... (4.) That barrier reefs have built out from the shore on a foundation of volcanic debris or on a talus of coral blocks, coral sediment, and Pelagic shells, and the lagoon channel is formed in the same way as a lagoon. (5.) That it is not necessary to call in subsidence to explain any of the characteristic features of barrier reefs or atolls, and that all these features would exist alike in areas of slow elevation, of rest, or of slow subsidence. In conclusion it was pointed out that all the causes...
Page 83 - From the recorded testimony of many competent witnesses, past and present, including observations recently made by scientific men of eminence in various countries, there appears to be, amidst much illusion and deception, an important body of remarkable phenomena, which are prima facie inexplicable on any generally recognized hypothesis, and which, if incontestably established, would be of the highest possible value.
Page 78 - ... inequalities as exhibited by the daily temperature-ranges at Toronto and at Kew. 2. While the sun-spots and the Kew temperature-range inequalities present evidence of a single oscillation, the corresponding Toronto temperature-range inequalities present evidence of a double oscillation.
Page 27 - The distribution of the Eocene and Miocene formations shows that during a considerable portion of the Tertiary period an inland sea, more or less occupied by an archipelago of islands, extended across Central Europe between the Baltic and the Black and Caspian seas, and thence by narrower channels southeastward to the valley of the Euphrates and the Persian Gulf, thus opening a communication between the North Atlantic and the Indian Ocean. From the Caspian also a wide arm of the sea extended, during...
Page 11 - ... opportunity of studying the Eriboll sections, which, from the days of Macculloch down to the present time, have been such a fruitful subject of discussion. It was a special injunction to the officers now intrusted with the detailed survey of the region to divest themselves of any prepossessions in favor of published views and to map the actual facts in entire disregard of theory.
Page 305 - The evidence, then," says Mr. Howorth, "of the debris of vegetation, and of the fresh-water and landshells found with the mammoth remains, amply confirms the a priori conclusion that the climate of Northern Siberia was at the epoch of the mammoth much more temperate than now. It seems that the botanical facies of the district was not unlike that of Southern Siberia; that the larch, the willow, and the Alnaster were probably the prevailing trees, that the limit of woods extended far to the north of...
Page 13 - Having satisfied myself that Murchison's explanation of the order of sequence could not be established in Eriboll, I was desirous to see again, in the new light now obtained, some of the Ross-shire sections for the description of which I am responsible. Had these sections been planned for the purpose of deception they could not have been more skilfully devised. The parallelism of dip and strike between the Silurian strata and the overlying schists is so complete as to prove the most intimate relationship...
Page 11 - With every desire to follow the interpretation of my late chief, I criticised minutely each detail of the work upon the ground, but I found the evidence altogether overwhelming against the upward succession which Murchison believed to exist in Eriboll from the base of the Silurian strata into an upper conformable series of schists and gneisses.