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according acid action analysis animals appears base becomes beds body called carbonate character chlorid coal coast color complete contains continued crystals described determined direction distinct equal equivalent examination exhibits existence experiments fact feet formula fossil four genera genus geological give given groups heat important inch iron island known latter length less lime limestone limits lower magnesia mass means measure miles mineral nature nearly nitric acid noticed observations obtained occurs organic original pass period placenta plants plates portion position present probably produced Prof published quantity range reference relations remains remarkable Report respect rocks salt says separated side silicate similar solution species specimens structure surface Survey temperature tion trace true United upper volume whole
Página 443 - Descriptions of new fossils from the Coal Measures of Missouri and Kansas, by BF Shumard and GC Swallow, pp.
Página 389 - Handbook of the British Flora; a Description of the Flowering Plants and Ferns indigenous to, or naturalized in, the British Isles. For the use of Beginners and Amateurs. By GEORGE BENTHAM, FRS 5th Edition, revised by Sir JD HOOKEE, CB, KCSI, FRS, &c.
Página 380 - ... surface cannot afford warmth enough to keep the water liquid. " This effect is well seen by the instant freezing of a piece of ice to a worsted glove even when on a warm hand. But metals may act so, provided they are prevented from conveying heat by surrounding them with ice. Thus, as has been shown, metals adhere to melting ice.
Página 98 - Report of a Geological Reconnaissance in California, made in Connection with the Expedition to Survey Routes in California to connect with the Surveys of Routes for a Railroad from the Mississippi River to the Pacific Ocean, under the Command of Lieut. RS Williamson : with an Appendix containing Descriptions of Portions of the Collection by Professors Agassiz, Oould, Bailey, Conrad, Torrcy, Schacffer, and Easter.
Página 141 - ... blood is found to be required. Dr. Daubeny suggested that this re-agent might be advantageously resorted to not only in the purification of sugar, but also in other processes of the laboratory, when the removal of foreign matters, intimately mixed with the solution of a definite component, becomes a necessary preliminary in its further examination.
Página 246 - In other cases dark lines are replaced by bright ones, as in the well-known instance of the electric spark between metallic surfaces. The occurrence of lines, whether bright or dark, is hence connected with the chemical nature of the substance producing the flame.
Página 223 - ... sustain a growth of pines and shrubs in the fissures. On one side the rocks tower into a precipice and overhang so as to form a cave ; at another place the side is low and formed of the broken rocks which were removed. From the top of the cliff, the excavation appears to be 200 ft. in depth and 300 or more in width. The bottom is funnel-shaped and formed by the sloping banks of the debris or fragments of the sides. On this debris, at the bottom of the pit, pine trees over a hundred years old...
Página 82 - ... in a Greenland ship that summer) told him, that their ship went not out to fish that summer, but only to take in the lading of the whole fleet, to bring it to an early market.
Página 200 - And though I know those who hold it to be very unscientific to believe that thinking is not something inherent in matter, and that there is an essential difference between inorganic and living and thinking beings, I shall not be prevented by any such pretensions of a false philosophy from expressing my conviction, that, as long as it cannot be shown that matter or physical forces do actually reason, I shall consider any manifestation of thought as evidence of the existence of a thinking being as...
Página 432 - ... is, moreover, well known. It was, therefore, that, after a careful study of these ancient rocks, I declared in May, 1858, that a great mass of evidence " points to the existence of organic life, even during the Laurentian, or socalled azoic period.