549 



Electric currents,on the theory of the main- 

 tenance of, by mechanical work, with- 

 out the use of permanent magnets, 397. 



Electric energy, remarks on the nature of, 

 and on the means by which it is trans- 

 mitted, 408. 



Electrical force, on the conversion of dyna- 

 mical into, without the aid of permanent 

 magnetism, 367. 



Electricity, experimental researches in 

 (Part I.), 107. 



, animal, electroscopic indications of, 



156. 



, indications of, in the living human 



body, 160. 



, on the means of increasing the quan- 

 tity of, by induction machines, 171. 



Ellis (A. J.), second memoir " On Plane 

 Stigmatics," 192. 



Ericke (J. F.), obituary notice of, xliv. 



Eozoon Canadense, further observations on 

 the structm'e and afiinities of, 503. 



Ethenyl, 57. 



Ethenylethyldiphenyldiamine, 59. 



Euler's constant, on the calculation of the 

 numerical value of, 429 ; supplement,43 1 . 



Evans (J.) on a possible geological cause 

 of changes in the position of the axis of 

 the earth's crust, 46. 



Everett (J. D.), account of experiments on 

 the flexural and torsional rigidity of a 

 glass rod, leading to the determination 

 of the rigidity of glass, 19. 



, account of experiments on torsion 



and flexure for the determination of ri- 

 gidities, 356. 



Falconer (H.), obituary notice of, xiv. 



Farrar (Eev. F. W.) admitted, 189. 



Fellows deceased, list of, 269. 



elected, list of, 188, 270. 



Fishes, observations on the ovum of os- 

 seous, 226. 



FitzEoy (Vice- Admiral E,.), obituary no- 

 tice of, xxi. 



Fizeau (H. L.), Eumford medal awarded 

 to, 283. 



Flexure, experiments on, 356. 



Flower (W. H.) on the development and 

 succession of the teeth in the Marsu- 

 pialia, 464. 



Fluorescence, on the increase of, in animal 

 textures after taking quinine, 80. 



Focus-equalizer, on a self-acting, 456 ; de- 

 scription of, 458. 



Foreign members elected : — F. C.Donders, 

 a. F. B. Eiemann, G. Eose, 189. 



Fovea centralis of the human retina, ana- 

 tomy of, 189. 



Frankland (E.) and Duppa (B. F.), re- 

 searches on acids of the lactic series : 

 No. I. Synthesis of acids of the lactic 

 series, 25. 



Frederiksdal, on the semidiurnal tides 

 of, 114. 



French government-expedition to deter- 

 mine geographical positions, 456. 



Gases, on the dynamical theory of, 167. 



, on the dialytic separation of, 223, 



G-assiot (J. P.) on Appold's apparatus 

 for regulating temperature and keeping 

 the air in a building at any desired de- 

 gree of moisture, 144. 



Geikie (A.) admitted, 29. 



Gladstone (J. H.) on pyro phosphoric acid 

 with the pyro- and tetra-phosphoric 

 amides, 510. 



Glass, rigidity of, determined by experi- 

 ments on the flexural and torsional ri- 

 gidity of a glass rod, 19. 



Gonipertz (B.), obituary notice of, xxiii. 



Graham (T.) on the absorption and dia- 

 lytic separation of gases by colloid septa : 

 Part I. Action of a septum of caoutchouc ; 

 Part II. Action of metallic septa at a 

 red heat, 223. 



on the occlusion of hydi'ogen gas by 



meteoric iron, 502. 



Gun-cotton, manufacture and composition 

 of, 102, 277. 



, researches on : Second Memoir, On 



the stability of gun-cotton, 417. 



Giinther (A.), contribution to the ana- 

 tomy of Hatteria {^Ehynchocejphalus, 

 Owen), 460. 



Guy (Dr. W. A.), admitted, 256. 



Hair, human, on a remarkable alteration 

 of appearance and structure of, 406. 



Harcourt (A. V.) and Esson (W.) on the 

 laws of connexion between the conditions 

 of a chemical change and its amount : 

 No. 11. On the reaction of hydric 

 peroxide and hydric iodide, 262. 



Harrison (J. P.) on the relation of inso- 

 lation to atmospheric humidity, 356. 



Hatteria, contribution to the anatomy of, 

 460. 



Haughton (Eev. S.) on the tides of the 

 Arctic seas: Part III. On the semi- 

 diurnal tides of Frederiksdal, near 

 Cape Farewell, in Greenland, 114. 



on the chemical and mineralogical 



composition of the Dhurmsalla meteoric 

 stone, 214. 



Heat, expansion of metals and alloys by, 

 220. 



Heating of a disk by rapid rotation in 



vacuo, 290. 

 Herapath (Dr. W. B.), readmission of, 



4,8. . 



Heterophyllia, on the genus of, 460. 

 Hey wood (Sir B.), obituary notice of, 

 xxiv. 



Hodgkinson (Eev. G. C), actinometrical 



