— CCLXXX'II — 



of a Li(iuid fiorn ils Rate ol" FlowUoiiyh a Capillary Tube. — 

 Svante Arrhenius. Oii tlic Electric Conductivity of Hot Gases. 



— Sydiini LupìQìì. Oa the Rediiction of the Resiilts ol' Expe- 

 riinents, vvitli fspGcial reference to the Hydrate tlieory of So- 

 lution. — T. Jìfftù-. Note on a peculiar Determinant of the Sixth 

 Order. — A. L. Selbij. Oii the Varlation of Surface. — Tension 

 with Temperature. — F. J. Smith. On some New Methods of 

 Investigating the Points of Rccalescence in Steel and Iron. 



RI. - Voi. 31, n. 193. - Jime 1891. 



J. Brou'tK On the Hole of the Cation in Voltaic Conljìnations ; pai- 

 ticulaiiy tlio-e cont.iining Chloiides of lo'line ami Bromine. 



— W. T. A. Emlarjiì. On a Method of Determining the Veloci- 

 tie'; of Propagation of Distnrbances in Elastic Media. — H. M. 

 Vernon. On Manganese Tetrachloride. — T. Mellard Reacle. 

 An Outline of M r Mellard Reade' s Theory of the Qrigin of 

 Mountain-Ranges by Sedimentary Londing and Cumulative 

 Recurrcnt Expansion : in Answer to Recent Ci iticisnis. — Ca- 

 rni/ Lea. Allotropie Silver. P. III. Blue Silver, soluble and 

 insoluble forms. — /. Swinhunie. The Electrometer as a 

 Waltmeler. — J. Winishurst. AUernating and Exporiinental 

 Inlluence Machine. — A. An<lerson. The Kocometry of Diver- 

 gine Lens-Combinations. 



1(1. - Voi. 32, n. 194. - Jiily 1891. 



/. Swiìiburnc. Some Points in Electrolysis. — A.Schusler. Eloctrical 

 Notes. — Sp'ìiccr Um frcviìle Pickerincj The Theory of Dissocia- 

 tion into lons, and its Consequences. — G. Gore. On Changes of 

 Voltaic Energy of AUoys during Fusion. — TV. Sutherland.k Ki- 

 netic Theory of Solids, with an Expcrimental Introduction. — W. 

 C. Daiiipier W/ie/an». Note on Kohlrausch' s Theory of Ionie Velo- 

 city. — J. MccoH'CDì. On the Solitary Wave. — S. Tolver Pre- 

 sloìì. Aeoustic Tiierinometer-a Suggestion. — R. .1. Lclifeldt. 

 On a Modified Foruì of Wheatslone' s Bridge. — /. Perry. A 

 Steam-Engine Indicalor for High Specds. — lì. T. Glazebruok. 

 On tlie V'aluc of some Mcrcui y Ri'sistanoo Slandards. — J. 

 E. Trevor. On tiie Mutual Solubiiity of Salts in Water. — ò\ 



