The American Journal of Science and ArtsS. Converse, 1854 |
Obsah
| 1 | |
| 11 | |
| 33 | |
| 56 | |
| 62 | |
| 78 | |
| 89 | |
| 133 | |
| 374 | |
| 387 | |
| 407 | |
| 421 | |
| 440 | |
| 451 | |
| 454 | |
| 460 | |
| 143 | |
| 152 | |
| 168 | |
| 176 | |
| 194 | |
| 199 | |
| 206 | |
| 221 | |
| 231 | |
| 239 | |
| 252 | |
| 258 | |
| 265 | |
| 279 | |
| 285 | |
| 296 | |
| 297 | |
| 309 | |
| 325 | |
| 331 | |
| 351 | |
| 2 | |
| 18 | |
| 33 | |
| 55 | |
| 61 | |
| 67 | |
| 76 | |
| 84 | |
| 95 | |
| 119 | |
| 261 | |
| 274 | |
| 292 | |
| 305 | |
| 314 | |
| 326 | |
| 340 | |
| 353 | |
| 369 | |
Iné vydania - Zobraziť všetky
Časté výrazy a frázy
acid anal Andalusite angle animals appears atomic weights auroral auroral light axis beds body carbonate cavities character chlorine cleavage color contain crystalline crystals cylinder deposits diameter distinct dorsal elements equal Esox examination fact feet feldspar fishes flora formation formula fossils gale genera genus geological globules heat hornblende hydrogen Idocrase inches iron islands isomorphism known Lake layers less light lime limestone lines lower magnetic Malpighian body mass means metal microscope miles mineral natural nearly object observed obtained occur octahedron organic oxyd oxygen peculiar plane plants portion potash present pressure prism Prof quartz Rafinesque ratio regard relation remarkable resembles river rocks sandstone Scapolite SECOND SERIES Section seen Sept side silica Silurian species specific gravity specimens structure substance sulphur surface temperature thickness tion trace tube upper vertical viviparous whole wire Wolffian bodies Zealand
Populárne pasáže
Strana 157 - Illustrations | of the | Birds | of | California, Texas, Oregon, British and | Russian America. | Intended to contain descriptions and figures | of all | North American Birds | not given by former American authors, | and a | General Synopsis of North American Ornithology.
Strana 455 - Synopsis of the Marine Invertebrata of Grand Manan : or the region about the mouth of the Bay of Fundy, New Brunswick.
Strana iii - Report on the geology of the Lake Superior land district : by JW Foster and JD Whitney, United States Geologists. Part II.
Strana 301 - Manual of Natural History for the Use of Travellers ; being a Description of the Families of the Animal and Vegetable Kingdoms, with Remarks on the Practical Study of Geology and Meteorology. To which are appended Directions for Collecting and Preserving. By ARTHUR ADAMS. MRCS ; W.
Strana 91 - And in regard to long circuits such as those described, their conducting power cannot be understood, whilst no reference is made to their lateral static induction, or to the conditions of intensity and quantity which then come into play ; especially in the case of short or intermitting currents, for then static and dynamic are continually passing into each other.
Strana 381 - In the chick no traces of the kidney are perceptible, according to my own observations, until the end of the fourth or the beginning of the fifth day. The ureter, then, is the part first seen, and consists of a simple tube, the upper part of which sends off branches.
Strana 94 - ... the same voltaic source, the same current in the same length of the same wire gives a different result as the intensity is made to vary with -variations of the induction around the wire. The idea of intensity, or the power of overcoming resistance, is as necessary to that of electricity, either static or current, as the idea of pressure is to steam in a boiler, or to air passing through apertures or tubes, and we must have language competent to express these conditions and these ideas.
Strana 76 - ... perception of which is deeply connected with our highest appreciation of individual animal life.* A true generation must be regarded as resulting only from the conjugation of two opposite sexes — from a sexual process in which the potential representations of two individuals are united for the elimination of one germ.
Strana 340 - ZEALAND. 4. These three peculiarities are shared by all the islands in the south temperate zone (including even Tristan d'Acunha, though placed so close to Africa), between which islands the transportation of seeds is even more unlikely than between the larger masses of land. 5. The plants of the Antarctic islands, which are equally natives of New Zealand, Tasmania, and Australia, are almost invariably found only on the lofty mountains of these countries.
Strana 69 - ... as already mentioned. Moreover, these rows of germs, which, at one period, closely resemble in general form the ovaries of some true insects, are not continuous with any uterine or other female organ, and therefore do not at all communicate directly with the external world. On the other hand, they are simply attached to the inner surface of the animal, and their component germs are detached into the abdominal cavity as fast as they are developed, and then escape outwards through a...