525 



" Flicker" in binocular vision (Sherrington), 71. 



Forsyth (A. R.) The Differential Invariants of a Surface, and their Geometric 

 Significance, 331. 



Fowler (A.) On a New Series of Lines in the Spectrum of Magnesium, 419. 

 Freeman (E. M.) The Seed-fungus of Lolium temulentttm, L., the Darnel, 27. 

 Fremlin (H. S.) On the Culture of the Nitroso-bacterium, 356. 



Gamble (F. W.) See Iveeble and Gamble. 



Gamgee (Arthur) and Hill (A. C.) On the Optical Activity of Hiemoglobin and 

 Globin, 376. 



and Jones (W.) On the Nucleoproteids of the Pancreas, Thymus, and 



Suprarenal Gland, with especial Reference to their Optical Activity, 385. 



Gastrulation cavity and primitive streak in OniitliorhyacJms (Wilson and Hill), 

 314. 



Geotropism, statolith theory of (Darwin), 362. 

 Globin, optical activity of (Gamgee and Hill), 376. 

 Glycerine, dieletric properties of (Wilson), 211. 



Haemoglobin and globin, optical activity of (Gamgee and Hill), 376. 

 Harmonic analysis, spherical (Schuster), 97. 



Hay (Sir J. D.) On Central American Earthquakes, particularly the Earthquake 

 of 1838, 403. 



Helium spectrum, effect of mercury on (Collie), 25. 



Hepburn (D.) and Waterston (D.) A Comparative Study of the Grey and Whltfe 

 Matter of the Motor Cell Groups, and of the Spinal Accessory Nerve, in the 

 Spinal Cord of the Porpoise {Phoccena com man is), 444. 



Hertzian Waves, magnetic detector for (Fleming), 398 ; (Lodge), 402. 



Heycock (C. T.) and Neville (F. H.) On the Constitution of the Copper-Tin Series 

 of Alloys, 409. 



Hill (A. Croft) See Gamgee and Hill. 



Hill (J. P.) See Wilson and Hill. 



Homotypcsis in differentiated organs (Pearson), 288. 



Humfrey (J. C. W.) Sec Ewing and Humfrey. 



Hydrometers, errors in use of, from surface tension (Levy), 171. 



Hydrophida-. 'action of poison of (Rogers), 481. 



Injury current in mammalian nerve, decline of, and relation to temperature 



(Sowton and Macdonald), 282. • 

 Integrals, on some definite (Schuster), 97. 

 Invariants, differential, of a surface (Forsytb), 331. 

 Ions, resistance of, and friction of solvent (Kohlrausoh), 338. 

 Iron, effects of magnetisation on electric conductivity (Barlow), 30. 



Jeans (J. H.) On the Vibrations and Stability of a Gravitating Planet, 136. 

 Joly (C. J.) Quaternions and Projective Geometry, 177. 

 Jones (H. 0.) See Dewar and Jones. 

 Jones (Walter) See Gamgee and Jones. 



Keeble (F.) and Gamble (F. W.) The Colour-physiology of the Higher 

 Crustacea, 69. 



Kohlrausch (F.) The Resistance of the Ions, and the Mechanical -Friction of the 

 Solvent, 338. 



Krypton and xenon in air, estimate of relative amounts of (Ramsay), 421. 

 VOL. LXXI. 2 V 



