Proceedings of the Royal Society of London, Volume 28Taylor & Francis, 1879 |
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Halaman 49
... photographs of the spectra of some of the brighter stars , which give well defined lines in the violet and ultra- violet parts of the spectrum . These spectra have already shown alterations in the lines common to them and the sun ...
... photographs of the spectra of some of the brighter stars , which give well defined lines in the violet and ultra- violet parts of the spectrum . These spectra have already shown alterations in the lines common to them and the sun ...
Halaman 79
... Photographic Spectra .... Dr. Armstrong , for continuation of Researches into the Phenol Series .... Administrative Expenses .. £ 2875 300 250 100 150 250 3925 75 £ 4000 Report of the Kew Committee for the Year ending October 1878. ] 79 ...
... Photographic Spectra .... Dr. Armstrong , for continuation of Researches into the Phenol Series .... Administrative Expenses .. £ 2875 300 250 100 150 250 3925 75 £ 4000 Report of the Kew Committee for the Year ending October 1878. ] 79 ...
Halaman 86
... photographic material has also been pro- cured for the Coimbra Observatory . A set of lamps , for use with Magnetographs , has been supplied to the Mauritius Observatory . Loan Exhibition . - The old instruments ( with the exception of ...
... photographic material has also been pro- cured for the Coimbra Observatory . A set of lamps , for use with Magnetographs , has been supplied to the Mauritius Observatory . Loan Exhibition . - The old instruments ( with the exception of ...
Halaman 86
... photographic material has also been pro- cured for the Coimbra Observatory . A set of lamps , for use with Magnetographs , has been supplied to the Mauritius Observatory . Loan Exhibition . - The old instruments ( with the exception of ...
... photographic material has also been pro- cured for the Coimbra Observatory . A set of lamps , for use with Magnetographs , has been supplied to the Mauritius Observatory . Loan Exhibition . - The old instruments ( with the exception of ...
Halaman 88
... Opticians , & c . Sale of Standard Thermometers Payments for Copying Registers Mr. De la Rue for Sun - work . Sale of Photographic Residues **** .............. Month . Dip Observations . G. M. T. Dip . Report of the Kew Committee .
... Opticians , & c . Sale of Standard Thermometers Payments for Copying Registers Mr. De la Rue for Sun - work . Sale of Photographic Residues **** .............. Month . Dip Observations . G. M. T. Dip . Report of the Kew Committee .
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absorption action amount angle Antedon apparatus appears Author axis band beam body bright bundles calcium carbonic acid carbonic acid expired cartilage cells cent centims centrodorsal chromosphere coal-dust corresponding curves density described disk effect electric experiments Fe line feet Fehling's solution fibre fire-damp Flora fossil Fraunhofer lines glass grms heat hydrogen hydrogen lines impurity inches increase intensity investigation iridium ischium lactin light liquid magnetic mean metallic method millims molecular molecules nerves notochord Observatory observed obtained olfactory olfactory nerve ordinary oxide oxygen paper papillę phenomena phosphorescence photographs placed Planarians plane plants plate pole position present pressure produced Professor protoplasm rays reflected refrangible resting point reversed rhodium rotation Royal Society Sauropsida seen shown side solution species specific rotation spectra spectrum stations substance sugar surface temperature Teneriffe tion tube velocity vibrations visceral arches wave-length weight zymase
Bagian yang populer
Halaman 284 - PHYSICS. LESSONS IN ELEMENTARY PHYSICS. By "BALFOUR STEWART, FRS, Professor of Natural Philosophy in Owens College, Manchester. With numerous Illustrations and Chromoliths of the Spectra of the Sun, Stars, and Nebulae.
Halaman 126 - Like all other conjurors (says Sir David Brewster), the artist has contrived to make the observer deceive himself. The stamped figures on the back are used for this purpose. The spectrum in the luminous area is not an image of the figures on the back. The figures are a copy of the picture which the artist has drawn on the face of the mirror, and so concealed by polishing, that it is invisible in ordinary lights, and can be brought out only in the sun's rays.
Halaman 105 - Whether the aetherial waves actually strike the substance moved, or whether at that mysterious boundary-surface separating solid from gaseous matter there are intermediary layers of condensed gas which, taking up the blow, pass it on to the layer beneath, are problems the solution of which must be left to further research.
Halaman 372 - INDEX MEDICUS.— A Monthly Classified Record of the Current Medical Literature of the World.
Halaman 296 - Report of the Council of Education upon the condition of the public schools and of the certified denominational schools for the year 1877.
Halaman 170 - They are as follows. In many photographs in which iron has been compared with other bodies, and in others again in which iron has been photographed as existing in different degrees of impurity in other bodies, these triplets have been seen almost alone, and the relative intensity of them, as compared with the few remaining lines, is greatly changed. In this these photographs resemble one I took three years ago, in which a large coil and jar were employed instead of the arc, which necessitated an...
Halaman 400 - ... derivation of the Mammalia from any of the Sauropsida. But, if we suppose the earliest forms of both the Mammalia and the Sauropsida to have had a common Amphibian origin, there is no difficulty in the supposition that, from the first, it was a left aortic arch in the one series, and the corresponding right aortic arch in the other, which became the predominant feeder of the arterial system.
Halaman 186 - The effects of this alteration of shape may be obtained by substituting for these variations of ellipticity two attractive or repulsive particles, one at the North Pole and the other at the South Pole of the earth. These particles must be supposed to wax and wane, so that when the real ellipticity of figure is greatest they have their maximum repulsive power, and when least they have their maximum attractive power ; and their positive and negative maxima are equal. We will now take the extreme case...
Halaman 163 - ... this latter being invariably thicker than the H lines in all photographs of the calcium spectrum, and remaining, moreover, visible in the spectrum of substances containing calcium in such small quantities as not to show any traces of the H lines. " How far this and similar variations between photographic records and the solar spectrum are due to causes incident to the photographic record itself, or to variations in the intensities of the various molecular vibrations under solar and terrestrial...
Halaman 404 - When n feebly electrified body is brought into its neighbourhood, the jet undergoes a remarkable transformation, and appears to become coherent ; but under more powerful electrical action the scattering becomes even greater than at first. The second effect is readily attributed to the mutual repulsion of the electrified drops, but the action of feeble electricity in producing apparent coherence has been a mystery hitherto.