The American Naturalist, Volume 6Essex Institute, 1872 |
Contents
| 1 | |
| 28 | |
| 62 | |
| 65 | |
| 79 | |
| 124 | |
| 129 | |
| 133 | |
| 436 | |
| 441 | |
| 449 | |
| 493 | |
| 500 | |
| 513 | |
| 528 | |
| 563 | |
| 144 | |
| 184 | |
| 193 | |
| 221 | |
| 222 | |
| 234 | |
| 242 | |
| 257 | |
| 275 | |
| 281 | |
| 294 | |
| 306 | |
| 317 | |
| 321 | |
| 330 | |
| 362 | |
| 368 | |
| 388 | |
| 404 | |
| 570 | |
| 577 | |
| 607 | |
| 636 | |
| 640 | |
| 641 | |
| 658 | |
| 671 | |
| 690 | |
| 721 | |
| 734 | |
| 740 | |
| 747 | |
| 769 | |
| 775 | |
| 784 | |
| 786 | |
Other editions - View all
Common terms and phrases
abundant Academy allied Amblyopsis AMER American angular aperture animals appear Asa Gray Baird beds birds blind fish bones Botany carboniferous cells character coast collection color common containing Cope Cretaceous Crustacea described diameter eggs Elliott Coues elytra eyes fact feet female flowers fossil genera genus geological give glacial glass habits head hundred inches Indian insects interesting island Journal known Lake large number larva larvæ leaves length lens less male Mammoth Cave mass microscope miles mountains Museum Natural History NATURALIST nearly North noticed O. C. Marsh object observed obtained organs pamph paper peculiar plants plate portion present probably Prof region remarkable represented River ROBERT RIDGWAY rocks root-lice Science scientific seen shore side species specimens stomata streams surface Taxodium tion trees valley vegetation vines wings Wyandotte Cave Zoology
Popular passages
Page 684 - ... unless we suppose the same species to have been created in two different places, we ought not to expect any closer similarity between the organic beings on the opposite sides of the Andes than on the opposite shores of the ocean.
Page 590 - It is a singular fact, that when we can find out how any thing is done, our first conclusion seems to be that God did not do it. No matter how wonderful, how beautiful, how intimately complex and delicate has been the machinery which has worked, perhaps for centuries, perhaps for millions of ages, to bring about some beneficent result, if we can but catch a glimpse of the wheels its divine character disappears.
Page 588 - Concluding, then, as we must, that our existing vegetation is a continuation of that of the tertiary period, may we suppose that it absolutely Originated then? Evidently not. The preceding cretaceous period has furnished to Carruthers in Europe a fossil fruit like that of the Sequoia gigantea of the famous groves, associated with Pines of the same character as those that accompany the present tree ; has furnished to Heer, from Greenland, two more Sequoias, one of them identical with a tertiary species,...
Page 15 - ... of hearing. This sense is, however, evidently very acute, for at any noise they turn suddenly downward, and hide beneath stones, etc., on the bottom. They must take much of their food near the surface, as the life of the depths is apparently very sparse. This habit is rendered easy by the structure of the fish, for the mouth is directed upwards, and the head is very flat above, thus allowing the mouth to be at the surface.
Page 573 - Some, we are told, rise so high that they might even cast a flicker of shadow upon the summit of the pyramid of Cheops. Yet the oldest of them doubtless grew from seed which was shed long after the names of the pyramid builders had been forgotten.
Page 59 - In a paper read before the Geological Section of the British Association, at the Plymouth meeting, last August, Mr.
Page 648 - The identity of many plants and animals, on mountain-summits, separated from each other by hundreds of miles of lowlands, where the Alpine species could not possibly exist, is one of the most striking cases known of the same species living at distant points, without the apparent possibility of their having migrated from one to the other.
Page 412 - ... would occur plentifully after floods. In the Wyandotte cave no such connection is known to exist. Access by water is against the current of small streams which discharge from it. On this basis rests an animal life which is limited in extent and must be subject to many vicissitudes. Yet a fuller examination will probably add to the number of species and of these, no doubt, a greater or less number of parasites on those already known. The discovery of the little...
Page 639 - ... flat stones had been laid around and over the body. The circular covering is about eight feet in diameter, and the stones yet look black, as if stained by fire and smoke. This circle of stones...
Page 578 - It is a noble, yew-like tree, and very local, being, so far as known, nearly confined to a few miles along the shores of a single river. It seems as if it had somehow been crowded down out of the Alleghanies into its present limited southern quarters ; for in cultivation it evinces a northern hardiness. Now another species of Torreya is a characteristic tree of Japan ; and one very like it, if not the same, inhabits the mountains of...