The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts, 47권A. and C. Black, 1849 |
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51 페이지
... seen by ad- verting to the character of the gypsum deposits of this for- mation , which I regard as having an intimate connection with this class of springs . The investigations of Mr Hall , in New York , and Mr Murray , in Canada ...
... seen by ad- verting to the character of the gypsum deposits of this for- mation , which I regard as having an intimate connection with this class of springs . The investigations of Mr Hall , in New York , and Mr Murray , in Canada ...
64 페이지
... seen in the tertiary formations , and destroyed that uniformity of distribution which is observed in the most ancient formations . 66 Assuming as a basis , the superposition and points of separation more or less decided among the faunas ...
... seen in the tertiary formations , and destroyed that uniformity of distribution which is observed in the most ancient formations . 66 Assuming as a basis , the superposition and points of separation more or less decided among the faunas ...
67 페이지
... seen thousands of fossil shells of this nature , that we can succeed in per- ceiving , in the most fugitive characters , what must have ex- isted in the primitive state . " A second cause of error is owing to the disappearance from ...
... seen thousands of fossil shells of this nature , that we can succeed in per- ceiving , in the most fugitive characters , what must have ex- isted in the primitive state . " A second cause of error is owing to the disappearance from ...
68 페이지
... seen in Cardium . † The Petunculus especially , and Arca , exhibit this character . I have seen this particularly in Cardium productum brought from Uchaux ( Vaucluse ) . § This modification is common in the same species . This takes ...
... seen in Cardium . † The Petunculus especially , and Arca , exhibit this character . I have seen this particularly in Cardium productum brought from Uchaux ( Vaucluse ) . § This modification is common in the same species . This takes ...
69 페이지
... seen them so placed in the inferior lias of Semur ( Côte - d'Or ) , in the inferior Oolite of Coulie ( Sarthe ) , in the Kimmeridgean stage of Havre , in those of Chatebaillon ( Charente - Inferieure ) , and in the Portlandian stage of ...
... seen them so placed in the inferior lias of Semur ( Côte - d'Or ) , in the inferior Oolite of Coulie ( Sarthe ) , in the Kimmeridgean stage of Havre , in those of Chatebaillon ( Charente - Inferieure ) , and in the Portlandian stage of ...
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Abessinia acid algæ alumina animals appear aurora borealis auroral light beds belt of perpetual Berzelius carbonate of lime carbonic acid chain character civilization colour comet communication containing d'Abbadie deposits depth direction dolomite Dr Prichard earth east Eastern Asia Egyptian electrical elevation epoch existence experiments fact fall feet formation fossil Gareloch geological glacier grooves height hills Himalaya improvements inches iron Kaffa languages length less light limestone Loch Loch Goil Loch Long London Lough Allen lower magnesia magnetic Manetho mass matter meerschaum ment meridian miles molluscs mountains nature nearly northern nutmeg observed oysters pass perpetual snow phenomena plains plants Plate-Glass portion present preserved produced pyroxenic quantity race racter rain regions remarkable rivers rocks seen shells shew shewn side Silurian snow-line Society southern species specimens streamers striæ surface temperature tion valley vapour vegetable whole
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258 페이지 - ... tails. Perhaps it is not too much to hope that future observation, borrowing every aid from rational speculation, grounded on the progress of physical science generally (especially those branches of it which relate to the...
199 페이지 - A Manual of Botany : being an Introduction to the Study of the Structure, Physiology, and Classification of Plants.
371 페이지 - ... this Report, Dr. Smith states that the pollution of air in crowded rooms is really owing to organic matter and not merely carbonic acid ; that all the water of great towns contains organic matter; that water purifies itself from organic matter in various ways, but particularly by converting it into nitrates, — that water can never stand long with advantage unless on a large scale, and should be used when collected or as soon as filtered.
46 페이지 - ... been able to bring them to the test of such experiments as would confirm or refute them; and should therefore have delayed the publication of them until these experiments had been made, if you, sir, and some other of my philosophical friends had not thought them as plausible as any other conjectures which have been formed on the subject ; and that, though they should not be verified by further experiments, or approved of by men of science in general, they may perhaps merit a discussion, and give...
44 페이지 - During the last summer also, a friend of mine gave some account of them to M. Lavoisier, as well as of the conclusion drawn from them, that dephlogisticated air is only water deprived of phlogiston ; but at that time so far was M. Lavoisier from thinking any such opinion warranted, that, till he was prevailed upon to repeat the experiment himself, he found some difficulty in believing that nearly the whole of the two airs could be converted into water.
349 페이지 - It will not only render the study of Geography more attractive, but actually show it in its true light, namely, as the science of the relations •which exist between nature and man throughout history ; of the contrasts observed between the different parts of the globe; of the laws of horizontal and vertical forms of the dry land, in its contact with the sea ; of climate, &c.
261 페이지 - In fact, it is difficult to name a nook on the face of the earth, or in the depths of the sea, where they are wholly absent, either in a dead or living state; and their office in the general economy, besides affording food for the humble members of the animal kingdom, seems to be the preparation of a soil for a higher class of vegetables. This they effect by the minute division of the...
250 페이지 - AD 1618 is stated to have been attended by a train no less than 104° in length. The comet of 1680, the most celebrated of modern times, and on many accounts the most remarkable of all, with a head not exceeding in brightness a star of the second magnitude, covered with its tail an extent of more than 70° of the heavens, or, as some accounts state, 90°.
252 페이지 - That the luminous part of a comet is something in the nature of a smoke, fog, or cloud, suspended in a transparent atmosphere is evident...
159 페이지 - ... but the exact method in which this is effected has not been ascertained. A remarkable point in their history results from this power of feeding on flint. It is this : their bodies are indestructible. Thus their...