Report of the Annual Meeting, المجلد 31Office of the British Association, 1862 |
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الصفحة liii
... remarkable discoveries of Kirchhoff and Bunsen require us to believe that a solid or liquid photosphere is seen through an atmosphere containing iron , sodium , lithium , and other metals in a vaporous condition . We must still wait for ...
... remarkable discoveries of Kirchhoff and Bunsen require us to believe that a solid or liquid photosphere is seen through an atmosphere containing iron , sodium , lithium , and other metals in a vaporous condition . We must still wait for ...
الصفحة lv
... remarkable advance has recently been made by Bunsen and Kirchhoff in the application of the coloured rays of the prism to analytical research . We may consider their discoveries as the commencement of a new era in analytical chemistry ...
... remarkable advance has recently been made by Bunsen and Kirchhoff in the application of the coloured rays of the prism to analytical research . We may consider their discoveries as the commencement of a new era in analytical chemistry ...
الصفحة lvii
... remarkable discoveries I ought to add an honourable mention of the sagacious and perilous exploration of Central and Northern Australia by Mr. M'Dougall Stuart . Having glanced , however imperfectly , at some of the most important ...
... remarkable discoveries I ought to add an honourable mention of the sagacious and perilous exploration of Central and Northern Australia by Mr. M'Dougall Stuart . Having glanced , however imperfectly , at some of the most important ...
الصفحة lviii
... remarkable smoothness and perfection , and the lightness of our carriages and the celerity with which they were driven still excites the admiration of those who remember them . These days of an efficiently worked system , which tasked ...
... remarkable smoothness and perfection , and the lightness of our carriages and the celerity with which they were driven still excites the admiration of those who remember them . These days of an efficiently worked system , which tasked ...
الصفحة 1
... remarkable meteor of March 10 , 1860 , must have been seen by many persons , and it seems to have been so , but no observations were taken by them of elevation , direction , & c .; and we are not in possession , even now , of sufficient ...
... remarkable meteor of March 10 , 1860 , must have been seen by many persons , and it seems to have been so , but no observations were taken by them of elevation , direction , & c .; and we are not in possession , even now , of sufficient ...
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طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
acid ammonia amount appears Astronomer Royal atmosphere average bread British Association carbonic carbonic acid Carboniferous cent centre climate coast coefficient colour Committee contained David Brewster depth determinant dietary Dip Circle direction Dry hole earth effect equation experiments feet force formula given granite heat Holyhead Ibid inches increase iron Kew Observatory labour light lime lines magnetic Makerstoun Manchester manufacture manure matter means metal meteor miles nearly nitrate of soda Observatory observed obtained ounces period pint plates portion present pressure prisoners produced Professor quadratic forms quantity quartz R. I. Murchison reference remarkable Report rocks Royal Scotland ship Silurian soda solution species sulphuric sulphuric acid superphosphate surface Table temperature thickness tion tons treadwheel tube velocity vessels weight whilst winds wires
مقاطع مشهورة
الصفحة xvii - To give a stronger impulse and a more systematic direction to scientific inquiry, — to promote the intercourse of those who cultivate Science in different parts of the British Empire, with one another and with foreign philosophers, — to obtain a more general attention to the objects of Science, and a removal of any disadvantages of a public kind which impede its progress.
الصفحة 25 - It is also impossible to conceive either the beginning or the continuance of life, without an overruling creative power ; and, therefore, no conclusions of dynamical science regarding the future condition of the earth can be held to give dispiriting views as to the destiny of the race of intelligent beings by which it is at present inhabited.
الصفحة xli - That the gentlemen whose names are appended be requested to act as a Committee (with power to add to their number) for the purpose of carrying out the previous resolution and of reporting to an adjourned public meeting to be held during the second week in October next.
الصفحة 131 - The German and Irish millions, like the Negro, have a great deal of guano in their destiny. They are ferried over the Atlantic and carted over America, to ditch and to drudge, to make corn cheap and then to lie down prematurely to make a spot of green grass on the prairie.
الصفحة 102 - I conclude further, that the dark lines of the solar spectrum which are not evoked by the atmosphere of the earth, exist in consequence of the presence, in the incandescent atmosphere of the sun, of those substances which in the spectrum of a flame produce bright lines at the same place.
الصفحة lxiii - When it is considered that stone bridges do not exceed 200 feet in span, nor cast-iron bridges 250 feet, we can estimate the progress which has been made in crossing rivers 400 or 500 feet in width, without any support at the middle of the stream. Even spans, greatly in excess of this, may be bridged over with safety, provided we do not exceed 1800 to 2000 feet, when the structure would be destroyed by its own weight.
الصفحة liii - Newton to introduce, at a later period, the idea of an attraction varying directly as the mass, and inversely as the square of the distance, and thus to reduce celestial phenomena to tho greatest simplicity, by comprehending them under a single law.
الصفحة lxv - Wray's compound and pure gutta-percha far surpass the commercial gutta-percha hitherto employed; but it remains to be seen whether the mechanical and commercial difficulties in the employment of these new materials can be successfully overcome. The external protecting covering is still a subject of anxious consideration. The objections to iron wire are its weight and liability to corrosion. Hemp has been substituted, but at present with no satisfactory result. All these difficulties, together with...
الصفحة 149 - This formula is submitted at present temporarily as being accurate enough for use for ordinary practical purposes for the measurement of water by notches similar to the one experimented on, and for quantities of water limited to nearly the same range as those in the experiments ; but...
الصفحة 101 - In the atmosphere around the sun, therefore, there must be present vapour of sodium, which, according to the mechanical explanation thus suggested, being particularly opaque for light of that quality prevents such of it as is emitted from the sun from penetrating to any considerable distance through the surrounding atmosphere.