American Journal of Science and Arts, Volumen62Kline Geology Laboratory, Yale University., 1851 |
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Página 15
... rock , no gas whatsoever escaping from its surface ; an incrustation is formed from it , that is in some places covered with a thin green coat resembling some of the salt of nickel or copper , it is , however , entirely of a vegetable ...
... rock , no gas whatsoever escaping from its surface ; an incrustation is formed from it , that is in some places covered with a thin green coat resembling some of the salt of nickel or copper , it is , however , entirely of a vegetable ...
Página 26
off by more or less perfect walls of coral reef - rock ; and the reef is here and there surmounted by verdure , forming a series of islets . In many of the smaller coral islands , the lagoon has lost its ocean character , and become a ...
off by more or less perfect walls of coral reef - rock ; and the reef is here and there surmounted by verdure , forming a series of islets . In many of the smaller coral islands , the lagoon has lost its ocean character , and become a ...
Página 30
... rock , and then fell off and finally brought up at a depth of 300 fathoms . Two miles east of Serle's Island , no bottom was found at 600 fathoms . A mile and a half south of the larger Disappointment Island , there was no bottom at 550 ...
... rock , and then fell off and finally brought up at a depth of 300 fathoms . Two miles east of Serle's Island , no bottom was found at 600 fathoms . A mile and a half south of the larger Disappointment Island , there was no bottom at 550 ...
Página 31
... rock , usually two to four hundred yards wide , and situated so low as to be swept by the waves at high tide . The outer edge , directly exposed to the surf , is generally broken into channels and jagged indentations , along which the ...
... rock , usually two to four hundred yards wide , and situated so low as to be swept by the waves at high tide . The outer edge , directly exposed to the surf , is generally broken into channels and jagged indentations , along which the ...
Página 32
... rock . From a to b is the shore platform of reef - rock , nearly at low tide level , with the margin ( a ) slightly elevated , and much incrusted at the top with Nullipores . From the platform there is a rise by a steep beach ( b c ...
... rock . From a to b is the shore platform of reef - rock , nearly at low tide level , with the margin ( a ) slightly elevated , and much incrusted at the top with Nullipores . From the platform there is a rise by a steep beach ( b c ...
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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.