American Journal of Science and Arts, Volumen62Kline Geology Laboratory, Yale University., 1851 |
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Página 113
... oxyd by means of hydrogen takes place with difficulty and at a temperature at which some of the oxyd is volatilized . A known weight of the metal was dissolved in pure nitric acid , the solu tion evaporated to dryness and ignited , and ...
... oxyd by means of hydrogen takes place with difficulty and at a temperature at which some of the oxyd is volatilized . A known weight of the metal was dissolved in pure nitric acid , the solu tion evaporated to dryness and ignited , and ...
Página 115
... oxyd is readily dissolved in the alkaline solution and when the liquid is allowed to evaporate spontane- ously a black substance is formed containing carbon , hydrogen , nitro- gen and silver and probably corresponding to fulminating ...
... oxyd is readily dissolved in the alkaline solution and when the liquid is allowed to evaporate spontane- ously a black substance is formed containing carbon , hydrogen , nitro- gen and silver and probably corresponding to fulminating ...
Página 174
... oxyd of iron , phosphate of magnesia , and fluorids of magnesium and calcium . The following is the result of one of Mr. Silliman's analyses from those made by him for the Report on Zoophytes . The specimen was a Porites from the ...
... oxyd of iron , phosphate of magnesia , and fluorids of magnesium and calcium . The following is the result of one of Mr. Silliman's analyses from those made by him for the Report on Zoophytes . The specimen was a Porites from the ...
Página 175
... Oxyd of iron , . In other analyses similar results were obtained , with sometimes a larger proportion of fluorids . The horny corals , ( axes of Gorgoniæ and Antipathi , ) were found by Hatchett to have nearly the constitution of ...
... Oxyd of iron , . In other analyses similar results were obtained , with sometimes a larger proportion of fluorids . The horny corals , ( axes of Gorgoniæ and Antipathi , ) were found by Hatchett to have nearly the constitution of ...
Página 195
... Oxyd of glycerile . 0 H C4 H2H HO CI Br C4H2Cl Cl32 = Chloroform . C4H2Br Brз ÷ 2 Bromoform.t CI I C4H2 II32 Iodoform . I Br I C4 H2 I Cl32 = Chloroiodoform . * Proceedings of the American Association for the Advancement of Science ...
... Oxyd of glycerile . 0 H C4 H2H HO CI Br C4H2Cl Cl32 = Chloroform . C4H2Br Brз ÷ 2 Bromoform.t CI I C4H2 II32 Iodoform . I Br I C4 H2 I Cl32 = Chloroiodoform . * Proceedings of the American Association for the Advancement of Science ...
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Términos y frases comunes
alumina ammonia angle animal antennæ appears Articulus Astræas atoms augite axis beds bismuth body Cancroidea carbonic acid cause character chemical chlorine coast color contains copper coral crystals curve density deposit depth diamagnetic diameter direction earth eclipse electricity equal experiments externi 3tius fact fathoms feet feldspar fluid force formula give glass heat hornblende hundred hydrogen inches iron islands lagoon lake latitude less lime limestone magnesia magnetic mass maxillipedis externi maxillipeds means meridian metal methylamine miles mineral motion nearly observations Observatory obtained occurs orifice oxyd oxygen parallel parenchyma Paumotus pendulum plane of vibration plates polyps portion potash present produced Prof quantity Raraka ratio reef remarkable ring rock rotation sand SECOND SERIES shores side silica Silurian soda species specimens Sulphate sulphur sulphuric acid supposed surface temperature theory tide tion trace trees tube vegetation zodiacal light zoophytes
Pasajes populares
Página 19 - With an unimportant exception, the candles are also made of what I beg to designate as vegetable stearine. When the candles, which are made by dipping, are of the required diameter, they receive a final dip into a mixture of the same material and insect-wax, by which their consistency is preserved in the hottest weather.
Página 71 - Supposing it all at mean temperature, the lines of force would have the direction determined by the arrangement of the power within the earth. Then the sun's presence in the east would make all the atmosphere in that region a worse conductor, and cause it to assume the character of D ; and as the sun came up to and passed over the meridian and away to the west, the atmosphere under his influence would bring up changes in direction like those shown in either D or D ; it would therefore manifestly...
Página 165 - Some writers, scouting the idea that reefs of rocks can be due in any way to " animalcules," talk of electrical forces, the first and last appeal of ignorance. Others call in the fishes of the seas, suggesting that they are the masons, and work with their teeth in the accumulation of the calcareous material. Very many of those who discourse quite learnedly on zoophytes and reefs, imagine that the polyps are mechanical workers, heaping up these piles of rock by their united labors ; and science still...
Página 293 - The Smithsonian Institution is also desirous of obtaining detailed lists of all the animals and plants of any locality throughout this continent. These, when practicable, should consist of the scientific names, as well as those in common use; but when the former are unknown, the latter may be employed.
Página 169 - Trees of coral are well known ; and although not emulating in size the oaks of our forests, — for they do not exceed six or eight feet in height, — they are gracefully branched, and the whole surface blooms with coral polyps in place of leaves and flowers. Shrubbery, tufts of rushes, beds of pinks, and feathery mosses, are most exactly imitated. Many species spread out in broad leaves or folia, and resemble some large-leaved plant just unfolding: when alive, the surface of each leaf is covered...
Página 117 - ... quantities. The vessels should be equally exposed to the light, with a sheet of white paper behind them. With these precautions I have found this test astonishingly delicate, in fact, ranking with those for iron, iodine, &c. Using fused nitre, I have detected the presence of 1 pt. in 017,000 pts.
Página 446 - Reports. Report of the Special Committee in favor of a Geological Survey of California Submitted by Mr. Randall April 24, 1851. 19 pp. Report of 1853. Geology of the Sierra Nevada or California Range, by John B. Trask. 31 pages. Report on the Geology of the Coast Mountains and part of the Sierra Nevada, embracing their Industrial Resources in Agriculture and Mining, by John B. Trask. Assembly Doc. No. 9, Session 1854. 95 pp.
Página 50 - ... mice — fresh water barely enough for household purposes — no streams, nor mountains, nor hills? How much of the poetry and literature of Europe would be intelligible to persons whose ideas had expanded only to the limits of a coral island...
Página 157 - In the meantime, the boulders and angular fragments brought down the ravines and river by the floods, are being cemented into a firm conglomerate so that it is difficult to dislodge even a small pebble, the pebble itself sometimes breaking before the cementation yields.
Página 269 - Tyndall accordingly concludes that " if the arrangement of the component particles of any body be such as to present different degrees of proximity in different directions, then the line of closest proximity, other circumstances being equal, will be that chosen by the respective forces for the exhibition of their greatest energy. If the mass be [para] magnetic, this line will stand axial; if diamagnetic, equatorial."2 1 Tyndall on Diamagnetism, p.