540 



INDEX. 



Electric conducting power of the metals 

 of tjie alkalies and alkaline earths, 

 on the, 81. 



currents, on peristaltic induction 



of, IciS. 



pauses, on, 261. 



Electrical discharges, on a new instru- 

 ment for registering a rapid succes- 

 sion of, 324. 



• figures, on new methods of pro- 

 ducing and fixing, (38. 



force, on some new jiheenomena 



of, 204. 



heat, note on, 223. 



Electricity, of the air and earth, on 

 the, 296; on the motion of, in wires, 

 393. 



dynamic, on the development 



of, by the immersion of unequally 

 heated metals in liquids, 1. 



, statical, on quantitative mea- 

 surement in, 204. 



Electro-physiological researches, 454. 



Elements, on the natural groupings 

 of the, 423, 480. 



Elephant, on the British species of 

 fossil, 462. 



ElUot (J.) on new forms of the stereo- 

 scope, 78, 104, 218. 



Ellis (Prof. G. V.) on the nature of the 

 involuntary muscular fibre, 456. 



Equations of the fifth degree, on the 

 theory of, 354. 



Ethylene, on some compounds of, 374. 



Eudialite and eukolite, comparative 

 examination and analysis of, 391. 



Factorial expression, on the summa- 

 tion of a certain, 419. 



Falconer (Dr. H.) on two species of 

 the fossil mammalian genus Plagiau- 

 lax, 385 ; on the British species of 

 fossil mastodon and elephant, 462. 



Faraday (Prof.) on the conservation of 

 force, 225 ; on the twinkling of the 

 stars, 301 ; on the persistent ap- 

 pearance of the lightunig-flash, 506. 



Farbehte, on the composition of, 50. 



Faye (M.) on the coloration of the 

 moon during eclipses, 78. 



Fergusonite,outhe composition of, 95. 



Fernet (M.)on the absorption of car- 

 bonic acid by solutions of salts, 118. 



Field (F.) on the existence of silver in 



sea-vvater, 524. 

 Fish-remains, on some, from the neigh- 

 bourhood of Ludlow, 386. 



Fluidsin motion, on the thermal eifects 

 of, 286. 



Fluorine in the blood, on M.J.Nickles' 

 cliiim to be the discoverer of, 162. 



Foam, remarks on, 352 ; on the tem- 

 perature of, 467. 



Foote (E.) on the heat in the sun's 

 rays, 167. 



Foraminifera, on the, 384. 



Forbes (D.) on the mineral species 

 tyrite, 9l ; on the chemical com- 

 jiosition of the Silurian and Cam- 

 brian limestones, 365. 



Force, on the conservation of, 225. 



Foucault's gyroscope, observations on, 

 31. 



Frankland (Dr. E.) on organo-metallic 

 bodies, 379. 



Furnaces for high temperatures, de- 

 scriptions of new, 123. 



Gai'dic acid, on, 185. 



Gall-bladder, on the functions of the 

 mucous membrane of the, 145. 



Gases, on the absorption of various, 

 by alcohol, and solutions of salts, 

 119; on the electrical state of, 296; 

 on the sounds produced by the 

 combustion of, in tubes, 473. 



Geikie (A.) on the geology of Strath, 

 466. 



Geological Society, proceedings of the, 

 76, 145, 209, 293, 385, 529. 



Gericke (M.) on sulphobenzole, 185. 



Girard (M.) on the action of nascent 

 hydrogen on bisulphide of cux'.'on, 

 187. 



Glyoxal and compouruls, 39, 66. 



Goessmann (M.) on gaidic acid, 185; 

 on triphenylamine, 183. 



Gore (6.) on the development of 

 dynamic electricity by the immei"- 

 sion of unequally heated metals in 

 liquids, 1. 



Gravity, on the force of, 225. 



Grove (W. R.) on some new methods 

 of producing and fixing electrical 

 figures, 63. 



Gyroscope, on Foucault's, 31. 



Hail, remarks on, 352. 



Harris (Sir W. S.) on quantitative 

 measurement in statical electricity, 

 and on some new phaeuomeua of 

 electrical force, 204. 



Ilauer (Chev.Ch.von)on an apparatus 

 for determining the solubility of 

 salts at high tcmjieratiircs, 304. 



