xxxiv 



INDEX. 



Potential of a voltaic couple in water, 

 influence of the ehemieal energy of 

 electrolytes upon the 'minimum- 

 point ' and change of (Grore) , 300. 



of voltaic couples, effects of dif- 

 ferent positive metals, &c, upon the 

 changes of (Grore), 368. 



Poynting (John Henry) elected, 268. 



admitted, 325. 



Preece (W. H.) on the heating effects of 

 electric currents. No. Ill, 109. 



Presents, lists of, 93, 117, 145, 200, 218, 

 253, 292, 323, 403. 



Pritchard (Rev. C), report on the 

 capacities, in respect of light and 

 photographic action, of two silver on 

 glass mirrors of different focal lengths, 

 168. 



Propyl alcohol, a study of the thermal 

 properties of (Eamsav and Young), 

 . 378. 



Queen, address to the, 325. 



Radio-micrometer, the (Boys), 96. 

 Maia batis, on the development of the 



electric organ of (Ewart), 120. 

 circularis, on the structure of the 



electric organ of (Ewart), 213. 

 radiata, the electric organ of 



(Ewart), 308. 

 Rainfall, on the relations of the diurnal 



barometric maxima to certain critical 



conditions of temperature, cloud, and 



(Blanford), 150, 410. 

 Ramsay (William) elected, 268. 

 admitted, 294. 



and S. Young, evaporation and dis- 

 sociation. Part VIII. A study of the 

 thermal properties of propyl alcohol, 

 378. 



Reflected colours, the measurement of 

 (Abney and Festing), 237. 



Reptilia, on the Anomodont, and their 

 allies (Seeley), 381. 



researches on the structure, organ- 

 isation, and classification of the fossil 

 (Seeley), Parts IV, V, 142, Part VI, 

 381. 



Reptilian character in mammalian teeth, 

 on the nature and limits of (Seeley), 

 129. 



Rhythm of the mammalian heart, on 



the (Mc William), 206. 

 Russell (W. H. L.) on certain definite 



integrals. No. 16, 311. 

 theorems in analytical geometry, 



388. 



Sachs (Julius) elected a foreign member, 

 220. 



Sanderson (J. P>.) on the electromotive 



properties of the leaf of Dioncea in 

 the excited and unexcited state. 

 No. II, 202. 

 Schunck (E.) contributions to the 

 chemistry of chlorophyll. No. Ill, 

 378, 448. 



Seeley (H. Or.) on the nature and limits 

 of reptilian character in mammalian 

 teeth, 129. 



researches on the structure, 



organisation, and classification of 

 the fossil reptilia. IV. On a large 

 humerus from the East Brak River, 

 South Africa, indicating a new order 

 of fossil animals which was more 

 nearly intermediate between reptiles 

 and mammals than the groups hitherto 

 known, 142. 



V. On associated bones of a 



small Anomodont reptile {Keiro- 

 gnathus cordylus, Seeley) , showing the 

 relative dimensions of the anterior 

 parts of the skeleton, and structure of 

 the fore-limb and shoulder-girdle, 

 142. 



VI. On the Anomodont rep- 

 tilia and their allies, 381. 



Seismometric measurements of the 

 vibration of the new Tay Bridge 

 during the passing of railway trains 

 (Ewing), 394. 



Selenium dioxide, on the compounds of 

 ammonia with (Cameron and Mac- 

 allan), 112. 



Ships in the Southern Indian Ocean, on 

 Meldrum's rules for handling (Aber- 

 cromby), 314. 



Silver on glass mirrors of different focal 

 lengths, capacities in respect of light 

 and photographic action of two 

 (Pritchard), 168. 



Skate, the electric organ of the (Ewart), 

 308. 



Solar eclipse of August 28-29, 1886, on 

 the determination of the photometric 

 intensity of the coronal light during 

 the. Preliminary notice (Abney and 

 Thorpe), 392. 



Solar Physics Committee, suggestions on 

 the classification of the various species 

 of heavenly bodies, a report to the. 

 — Bakerian lecture (Lockyer), 1. 



Specific resistance of mercury, on the 

 (Grlazebrook and Eitzpatrick), 379. 



Spectrum of magnesium, investigations 

 on the. No. II (Liveing and Dewar), 

 241. 



Stoney (Gr. J.) on the logarithmic law of 



atomic weights, 115. 

 Sudeley (Lord) admitted, 96. 

 Sylvester (J. J.) and J. Hammond, on 



Hamilton's numbers. Part II, 99. 



