819 ] 



INDEX to VOL. IX. 



Aberrations of the second 



degree, on the theory of experi- 

 ments to detect, 669. 

 Adeney (Dr. W. E.) on unrecognized 

 factors in the transmission of gases 

 through water, 360. 

 ^Eolo tropic potential, on, 425. 

 ^Ether. on the relative motion of the 



Earth and, 669, 680. 

 Air, on the spontaneous ionization 



of, in closed vessels, 550. 

 Albumin, on the molecular mass of, 



781. 

 Alcohols, on the boiling-points of 



the, 15. 

 Alternator, on a hio-h-frequencv, 



299. 

 Alternators in parallel, on, 309. 

 Aluminium, on the radiation from, 



531. 

 Anode, on the polarization at a 



metallic, 645. 

 Anomalous dispersion of the mag- 

 netic rotation of the plane of 

 polarization, on the, 725. 

 Atmosphere, on the chemical and 



geological history of the, 88. 

 Atmospheres, on the escape of gases 



from, 508, 510. 

 Avebury (Lord ) on an experiment in 



mountain-building, 818. 

 Barnes (Dr. H. T.) on the heating 

 effect of the y rays from radium, 

 621. 

 Bars, on the lateral vibration of. 



134. 

 Bell (Dr. C. A.) on the determination 

 of Young's modulus for glass, 43 3. 

 Bellamy (C. V.) on the geology of 



Cyprus, 390. 

 Bennett (G. T.) on the parallel 



motion of Sarrut, 803. 

 Bjerknea (Prof. V.) on Maxwell's 

 491. 



Blake (Rev. J. F.) on the Manx 

 slates, 619. 



Blanc (Dr. G. A.) on the radio- 

 activity of mineral springs, 148. 



Bohnenberger's machine, on, 722. 



Boiling-points of homologous com- 

 pounds, on the, 1. 



Bolt wood (Dr. B. B.) on the origin 

 of radium, 599. 



Books, new : — The Collected Mathe- 

 matical Papers of James Joseph 

 Sylvester, vol. i., 185 ; Chwolson's 

 Lehrbuch der Physik, Bd. ii., 186 ; 

 Lehmann'sDr. J.Frick's Physikal- 

 ische Technik, 187 ; Righi's Ii 

 Radio, 188; Amaduzzi'sIlSelenio, 

 188 ; Cohn's Die Riechstoffe, 189 ; 

 BischofFs Materialien der Stereo- 

 chemie in Form von Jahres- 

 berichten, 189 ; Engler und 

 AVeissberg's Kritische Studien 

 iiber die Vorgange der Aut- 

 oxydation, 190 ; Chevrier's Etude 

 sur les Resonances dans les Re- 

 seaux de Distribution par Courants 

 Alternatifs, 190 ; Koch's Den 

 Elektriska Gnistan, 190 ; La Tele- 

 graphie sans Fil, 191 ; Hiber's 

 Gravitation als Fol^e einer Um- 

 wandlung der Bewegungsform des 

 .Ethers im Inneren der wagbaren 

 Materie, 191; Watts's Introduction 

 to the Study of Spectrum Analysis, 

 191 ; Lehfeldt's Electro-Chemistry, 

 pt. i., 192 ; Roozeboom's Die 

 heterogenen Gleichgewichte vom 

 Standpunkte rler Phasenlehre, 285 ; 

 Schuster's Introduction to the 

 Study of Optics, 386; Mbissan'a 

 The Electric Furnace, 385: Watts's 

 Ind-x <»f Spectra, App. O, 386; 

 Czapski's Grundziige der Theorie 

 der Optischen Instrun ente nach 

 Abbe, 386; Aries's Fa Statique 

 Chimique, 387; Guttmann's Per- 



