XX 11 



INDEX. 



Seeley (H. G-.) the nature of the 

 shoulder girdle and clavicular arch in 

 Sauropterygia, 446. 



Shaw (William Napier) elected, 1. 



admitted, 120. 



Silver nitrate in vaciio, on the electro- 

 lysis of (Schuster and Crossley), 

 344. 



Sinclair (F. Gr.) a new mode of respira- 

 tion in the Myriapoda, 200, 358. 



Skate, observations on the structure, 

 relations, progressive development, 

 and growth of the electric organ of 

 the (E wart), 474. 



Sound-waves, note on the audibility of 

 single, and the number of vibrations 

 necessary to produce a tone (Herroun 

 and Yeo), 318. 



Spectrum of Nova Aurigae, note on the 

 (Lockyer), 431. (See also 407, 466.) 



Spencer (W. Gr.) on the changes evoked 

 in the circulation and respiration by 

 electrical excitation of the floor of the 

 4th ventricle, 142. 



Spinal cord in monkeys, results of hemi- 

 sectionof the (Mott), 120. 



Spore-producing members, studies in the 

 morphology of. Preliminary state- 

 ment on the Lycopodinse and Ophio- 

 glossacese (Bower), 265. 



Stainton (H. T.) elected an auditor, 

 166. 



Starling (E. H.) and W. M. Bayliss, on 

 the electromotive phenomena of the 

 mammalian heart, 211. 



Statutes of the Koyal Society (1891), 

 483. 



a note on the history of the (Foster), 



501. 



Steam and water, on some of the pro- 

 perties of (Ramsay), 254. 



Strasburger (Eduard) elected a foreign 

 member, 194. 



Stuart (T. P. A) on the mechanism of 

 the closure of the larynx. Preliminary 

 communication, 323. 



Sugar in the animal economy, the role 

 played by. Preliminary note on the 

 behaviour of sugar in blood (Harley), 

 442. 



Sumpner (W. E.), W. E. Ayrton, and 

 J. Perry, quadrant electrometers, 

 53. 



Surfaces, on the locus of singular points 

 and lines which occur in connexion 

 with the theory of the locus of ulti- 

 mate intersections of a system of 

 (Hill), 180. 



Sympathetic fibres, on the origin from 

 the spinal cord of the cervical and 

 upper thoracic (Langley ), 446. 



Tabulation areas and biologic regions, 

 on (Clarke), 472. 



Tacchini (Pietro) elected a foreign 

 member, 194. 



Ternary alloys, on certain. Part V. 

 Determination of various critical 

 curves and their tie-lines and limiting 

 points (Wright), 372. 



Thermal conductivities of crystals and 

 other bad conductors, on the (Lees) , 

 421. 



Thermal emissivity of thin wires in air 

 (Ayrton and Kilgour), 166. 



Thermometer, on a compensated air 

 (Callendar), 247. 



Thompson (Silvan us Phillips) elected, 1. 



admitted, 79. 



Thomson (Sir W.), offered congratula- 

 tions of Society on his elevation to the 

 peerage, 318. 



on instability of periodic motion, 



194. 



on some test cases for the Max well - 



Boltzmann doctrine regarding distri- 

 bution of energy, 79. 



Tizard (Thomas Henry) elected, 1. 



admitted, 79. 



Trust funds, 237. 



Vanes, on the pressure of wind on 



curved (Dines), 42. 

 Yice-Presidents, appointment of, 247. 



Wales, Prince and Princess of, address 

 of sympathy to the, 318. 



letter of acknowledgment 



for, 318. 



Walker (Gr. T.) repulsion and rotation 

 produced by alternating electric cur- 

 rents, 255. 



Ward (H. M.) the " ginger-beer plant " 

 and the organisms composing it : M 

 contribution to the study of fermen- 

 tation-yeasts and bacteria, 261, 358. 



Water and steam, on some of the pro- 

 perties of (Ramsay and Young), 254. 



Wilde (H.) on the influence of tempera- 

 ture upon the magnetisation of iron 

 and other magnetic substances, 109. 



Williamson (W. C.) on the organisation 

 of the fossil plants of the coal- 

 measures. Part XIX, 469. 



Wind, on the pressure of, on curved 

 vanes (Dines), 42. 



Wood-Mason (J.) and A. Alcock, fur- 

 ther observations on the gestation of 

 Indian rays ; being natural historv 

 notes from H.M. Indian Marine 

 Survey steamer " Investigator.' 

 Series 2, No. 11, 202. 



Worthington (A. M.) on the mechanical 

 stretching of liquids : an expert- 



