The Edinburgh New Philosophical Journal, 47권A. and C. Black, 1849 |
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58 페이지
... southern position , altogether be- yond the torrid zone , which nearly all the species inhabit , and thus form a barrier which they are unable to pass . have , therefore , the certainty that uniformity of temperature , We * See my ...
... southern position , altogether be- yond the torrid zone , which nearly all the species inhabit , and thus form a barrier which they are unable to pass . have , therefore , the certainty that uniformity of temperature , We * See my ...
74 페이지
... southern chain , the rocks of Marmollata , attaining a height of 10,400 feet , appear to exceed the other parts of the chain . The crystalline rocks of the central chain are formed of true granite , the component parts differing in size ...
... southern chain , the rocks of Marmollata , attaining a height of 10,400 feet , appear to exceed the other parts of the chain . The crystalline rocks of the central chain are formed of true granite , the component parts differing in size ...
78 페이지
... southern acclivity of the Alps , we selected the pass of Heiligen - Blut for our return to the north , as being elevated ( 8,051 feet ) , and very near to Gross - Glockner , so that we hoped to find in it as much scientific interest as ...
... southern acclivity of the Alps , we selected the pass of Heiligen - Blut for our return to the north , as being elevated ( 8,051 feet ) , and very near to Gross - Glockner , so that we hoped to find in it as much scientific interest as ...
81 페이지
... southern Valais ; near Dienten ( above and below the village ) , these formations contain beds of carbonated iron , which dip at 30 ° to the north . These beds , which are mined , closely resem- ble the mines of spathic iron in Dauphiny ...
... southern Valais ; near Dienten ( above and below the village ) , these formations contain beds of carbonated iron , which dip at 30 ° to the north . These beds , which are mined , closely resem- ble the mines of spathic iron in Dauphiny ...
111 페이지
... southern acclivity of Mont Blanc are likewise in progress ; that of La Brenva has advanced thirty - one metres this year , according to the state- ment of M. the Canon Gal . We might multiply examples ; but the preceding facts are ...
... southern acclivity of Mont Blanc are likewise in progress ; that of La Brenva has advanced thirty - one metres this year , according to the state- ment of M. the Canon Gal . We might multiply examples ; but the preceding facts are ...
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acid algæ Alps animals appear Asia aurora borealis auroral light beds Berzelius carbonate of lime carbonic acid carboniferous chain character colour comet communication containing deposits depth Dillenburg direction dolomite Dr Prichard earth east Edinburgh electrical elevation epoch examined existence experiments fact fall feet formation fossil Gareloch geological glacier greenstone grooves height Himalaya improvements inches Inches of Mercury Kaffa languages less light limestone Loch Loch Long London lower magnesia magnetic masses matter ment miles mineral molluscs mountains nature nearly northern nutmeg observed oligistic iron oysters pass perpetual snow plains plants Plate-Glass portion present preserved produced pyroxenic quantity race regions remarkable rivers rocks sandstone schalstein seen shells shew shewn side Silurian slates snow-line Society southern species specimens strata streamers striæ substance sulphate surface temperature tion trees Tyrol valley vapour vegetable whole
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256 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...
197 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.
44 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...
42 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.
386 페이지 - NEWTON, of the Office for Patents, 66 Chancery Lane, in the county of Middlesex, civil engineer, " certain improvements in steam-boilers," being a communication from a foreigner residing abroad.
375 페이지 - I discovered chromate of iron disseminated in these rocks ; and ten or fifteen miles farther south (near the city of Harmanjick) there is an abundant deposit of this mineral. A circumstance worthy of remark, is, that this chromate of iron (the first that has been discovered in Asia Minor) is found in serpentine as elsewhere. This important fact can explain to a certain extent the formation of this chromate. It is well known that serpentine contains all the elements of chromate of iron, which, during...
248 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°.
380 페이지 - America, the consumer really eats more than half a pound of gypsum and indigo : — and I have little doubt that in many instances Prussian blue is substituted for indigo. And yet, tell these green tea drinkers that the Chinese eat dogs, cats and rats, and they will hold up their hands in amazement and pity the taste of the poor Celestials. In five minutes from the time of the colour being thrown into the pan the desired effect was produced.