Proceedings of the Royal Society of London, Volume 26Taylor & Francis, 1878 - Electronic journals Obituary notices of deceased fellows were included in v. 7-64; v. 75 is made up of "obituaries of deceased fellows, chiefly for the period 1898-1904, with a general index to previous obituary notices"; the notices have been continued in subsequent volumes as follows: v. 78a, 79b, 80a-b- 86a-b, 87a 88a-b. |
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Common terms and phrases
alumina angle appears arithmetical mean axis Bacteria bath blood body boiling bubble bulb carbonate of ammonium carbonic acid cavity cells cent centims colour connexion containing contraction cooling copper corresponding crystal cubic centimetres curve cycle cylinder declination-range dentine difference of potential dispersion effect employed equation experiments F.R.S. Received fall film flasks flint gastrocnemius give glass glucina gramme half-prism heat hydrochloric acid inches increase infusions June Kew Observatory light lines liquid London magnetic magnifying-power mean mercury method millims minutes motion nerve-cells nerves neuroglia observations Observatory obtained ordinary paper period plane plate platinum position present prism produced Prof quantity radiometer refraction refractive index resistance rise rotation Royal Society seen slit solution specimens spectrum sphincter Sprengel pump sugar sulphate sulphuric acid surface Table temperature thermometer thickness tion tube variation velocity vessel wire zinc
Popular passages
Page 93 - ELECTRICITY and MAGNETISM. By FLEEMING JENKIN, FRSS. L. & E. Professor of Engineering in the University of Edinburgh. Price 3s.
Page 535 - It might be supposed at the first sight that the change of rotation from negative to positive (in § 7) was due, not to a change in the conditions of absorption, but to the circumstance that the inner surface of the bulb had become warm by conduction, so as to be warmer than the surfaces of the fly instead of colder. For we now know that the " repulsion resulting from radiation," as in some way or other it undoubtedly does result, is an indirect effect, in which radiation acts only through the alterations...
Page 428 - The PRESIDENT then delivered his Address, (p. 65.) It was proposed by Mr. LATHAM, seconded by Mr. FIELD, and resolved:— " That the thanks of the Society be given to the President for his Address, and that he be requested to allow it to be printed in the Quarterly Journal of the Society.
Page 25 - Thus in both cases the half-prisms may be made narrower and narrower in geometrical progression, starting with that end which begins with a perpendicular face. The difference between the two cases is, that in the first case the train (counting from the slit) begins with the broadest prism, and in the second case with the narrowest, so that with the hitter arrangement we have a narrower pencil and consequently less light.
Page 357 - Batavia : — Bataviaasch Genootschap van Kunsten en Wetenschappen. Tijdschrift voor Indische Taal-, Land-, en Volkenkunde. Deel XXIII.
Page 178 - Exposed to a standard candle 3-5 inches off, the fly rotates continuously at the rate of one revolution in 3'37 seconds. A screen placed in front...
Page 179 - A two-disk, cup-shaped, aluminium radiometer, lampblacked on the concave surfaces. In this instrument the usual action of light is reversed, rotation taking place, the bright convex side being repelled, and the black concave attracted. When the light shines only on the bright convex side, no movement is produced, but when it shines on the black concave side, this is attracted, producing rotation. 15. Radiometer. — A cup-shaped radiometer similar to the above, but having the convex surfaces black...
Page 533 - In the mica radiometer the experiments indicate no such difference of action in the different layers of the bulb as in the case of the pith radiometer. Hence taking, in accordance with what now appears to be made out to be the theory of the motion of the radiometer, the direction in which the fly is impelled as an indication which is the warmer of the two faces of the disks, and that again as an indication...
Page 228 - One source of discomfort clung persistently to my mind throughout these experiments. I was by no means certain that the observed development of life was not due to germs entangled in the film of liquid adherent to the necks and higher interior surfaces of the bulbs. This film might have evaporated, and its germs, surrounded by air and vapour, instead of by water, might, on this account, have been able to withstand an ordeal to which they would have succumbed if submerged. A plan was therefore resorted...
Page 224 - The infusions extracted from it bore, in some cases, not only five minutes' but fifteen minutes' boiling with impunity. On changing the hay a different result was often obtained. Many of the infusions extracted from samples of hay purchased in the autumn of 1876 behaved exactly like those extracted from the hay of 1875, being completely sterilized by five minutes' boiling. The possible influence of age and dryness soon suggested itself, and I tested the surmise to the uttermost. Numerous and laborious...