*Sanderson (Prof. Burdon), new researches on the electrical phenomena consequent on irritation of the leaves of the fly-trap (Dionea muscipula), 163. Savings Banks as a State function developed by charity organization, Dr. W. N. Hancock on, 199. Scientific Museum, a permanent, J. Heywood on the memorial of eminent scientific gentlemen in favour of, 199. *Scotland, Dr. J. Bryce on the earthquake districts of, 88. Scottish poor law, A. MN. Caird on some special evils of the, 197. *Scott-Moncreiff (W. D.) on a pneumatic tramway-car, 233. *Serpent of the ancients and the Arthurian apple, J. S. Phené on, 169. *Sewage, W. C. Sillar on the utilization of, 68. purification and utilization, J. Banks on, 62. Sewell (Rev. E.) on the drifts and boulders of the upper part of the valley of the Wharfe, Yorkshire, 95. *Shaw (J.) on right-handedness, 169; on the mental progress of animals during the human period, 169. Sheriff' courts and relative judicial statistics, F. Russell on, 208. Siemens (Dr. C. W.), description of the bathometer, 31. Silica cells, artificial, experiments on the formation and growth of, by Prof. Cohn, 146. Siliceous sponges from the Carboniferous limestone near Glasgow, J. Young on, 99. *Sillar (W. C.) on the utilization of sewage, 68. *Silva (R. D.) on the action of hydriodic acid on mixed ethers of the general formula CnH2n+1+O. CH3, 68. Silver, the inconvenience of a rapid depreciation of, in India, Dr. W. N. Hancock on the importance of extending the British gold standard to India, as a remedy for, 198. the depreciation of, and a gold standard for India, S. Mason on, 207. dilemma, J. Matheson, jun., on the, 207. Simons (W.) on an elevating steam ferry, 233. *Simson (A.) notes on the River Putumayo or Içá, South America, 184. Skull, a hydrocephalic, Prof. Cleland on, and on the duplicity of the temporal ridge, 149. 196. *Slimon (Dr. R.) on the upper Silurian rocks of Lesmahagow, 96. *Smith (A.) on sodium, 68. *Soaring of birds, mechanical theory of the, by W. Froude, 31. *Soda manufacture, J. Mactear on, 65. *Sodium, A. Smith on, 68. *Solid water, Prof. Guthrie on, 64. *Spanish mining, Don A. de Marcoartu on, 207. Sphenopteris affinis, C. W. Peach on circinnate vernation of, from the earliest stage to completion, 94, 144. Spherical class-cubics with double foci and double cyclic arcs, H. M. Jeffery on, 19. Spottiswoode's pocket polarizing apparatus, a description of, by W. Ladd, 41. *Sprengel pump, C. H. Gimingham on a modification of the, 49. *Spring fenders, M. Evans on the application of, to pier-heads, 223. *Standards of measure and weight, new, Prof. Hennessy on, 49. Stanford (E. C. Č.) on the manufacture of iodine, 68. Staphylopteris, a genus new to British rocks, C. W. Peach on the discovery of, 94, 144. Steam ferry, an elevating, W. Simons on, 233. ship resistance, J. E. Williams on, 233. vessels, R. Mansel on the direct motion of, 227. *Steel (J.) on the brake problem, 233. *Steel plates for boiler purposes, A. B. Brown on a flanging-iron and, 219. Steering qualities of ships, Prof. O. Reynolds on the investigation of the, 229. *Stephenson (Mr.) on the civilization of South-eastern Africa, 208. *Stirling (Dr. N.) on the nervous apparatus of the lungs, 163. Stobcross Docks, description of, by J. Deas, 220. *Stoddart (J. E.) on lead desilverizing by the zinc process, 69. Stokes (Prof. G. G.) on a phenomenon of metallic reflection, 41. Stone (Octavius) on his recent journeys in New Guinea, 184. Stoney (G. J.) on the amplitude of waves of light and heat, 31; *on acoustic analogues to motions in the molecules of gases, 31; on the atomicity of oxygen and on the constitution of basic salts, 69. Strath-Errick, Lough Ness, Dr. J. Bryce on the granite of, 87. *Stroudley (W.) on communications between passengers and guards in railway trains, 233. Struthers (Prof.), an account of fingermuscles found in the Greenland right whale, 163; an account of dissections of the supposed rudimentary hind limb of the Greenland right whale, 163. *Subaqueous rocks, Major Beaumont on the removal of, by the diamond rock-borer, 219. Sub-Wealden exploration, Major Beaumont on the, 87. H. Willett on the, 97. *Sugar, T. L. Patterson on, 67. refining, J. A. R. Newlands on the alum process in, 66. *Sun, the eclipse of the, observed at Siam in April 1875, Dr. J. Janssen on, 40. Surface-water of the ocean, on the specific gravity of the, as observed during the cruise of H.M.S. 'Challenger,' by J. Y. Buchanan, 181. Surnames, the Anglicizing and Gaelicizing of, H. MacLean on, 167. Swan (D.) on zinc, 69. Symons (G. J.) on a new form of thermometer for observing earth temperature, 49; on an unmistakable true north compass, 49. Systèmes de points matériels, V. Cerruti sur les mouvements apériodiques des, 12. de sphères et les systèmes de droites, Prof. L. Cremona sur les, 12. Tait (Prof. P. G.), general theorems relating to closed curves, 29. (P. M.) on the theory and practice of accident insurance by sea and land, 208. *Taylor (J. E.) on the age, fauna, and mode of occurrence of the phosphorite deposits of the South of France, 96. Telescopes, equatorial, II. Grubb on recent improvements in, 37. Temperature, the decrease of, with height on the earth's surface, Prof. Hennessy on, 39. the distribution of, over the British Islands, Prof. Hennessy on, 39. Terpenes, C. T. Kingzett on the limited oxidation of, 64. ——, Dr. W. A. Tilden on the nitroso derivatives of the, 70. Tertiary basalt-rock dykes in Scotland, R. L. Jack on, 92. Testings of large objectives, II. Grubb, on the, 36. Theory of functions, elementary demonstration of a fundamental principle of the, by Prof. P. Mansion, 26. Thermoelectric phenomena, O. J. Lodge on a mechanical illustration of, 43. Thermometer, a new deep-sea, J. Y. Buchanan on, 81. for observing earth temperature, a new form of, G. J. Symons on, 49. Theta function as a definite integral, J. W. L. Glaisher on a series summation leading to an expression for the, 15. *Thomson (Dr. Allen) on two skulls from the Andaman Islands, 169. (Prof. J.) on a theorem in the mensuration of certain solids, 30; experimental illustration of the origin of windings of rivers in alluvial plains, 31; on metric units of force, energy, and power, larger than those on the centimetre-gram-second system, 32; *on ridgy structure in coal, with suggestions for accounting for its origin, 96; *further illustrations of the jointed prismatic structure in basalts and other igneous rocks, 93. (Rev. R.) on the prevention of the pollution of rivers, 70, 210. (Prof. Sir W.), Address by, to the Mathematical and Physical Section, 1; on the precessional motion of a liquid, 33; secular illustration of the laws of the diffusion of liquids, 35; *on a new case of instability of steady motion, 35; on the nutation of a solid shell containing liquid, 35; *on compass correction in iron ships, 45; *effects of stress on the magnetization of iron, 45; *on contact electricity, 45; on a practical method of tuning a major third, 48; on a new form of astronomical clock with free pendulum and independently governed uniform motion for escapement-wheel, 49; physical explanation of the mackerel sky, 54; on navigational deep-sea soundings in a ship moving at high speed, 54; on naval signalling, 233. Thomson (W.) on the growth of mildew retardation argument for the age of the earth, J. Croll on the, 88. *Tilden (Dr. W. A.) on the nitroso derivatives of the terpenes, 70; *preliminary note on a new iso-purpurine, 70. *Time, S. Fleming on the conventional division of, now in use, and on the desirability of adopting common time over the globe for railways and steamships, 182. Tizard (Staff Commander) on the temperature obtained in the Atlantic Ocean during the cruise of H.M.S. Challenger, 185. Tortoises, gigantic land, and a freshwater species from the Maltese caverns, with observations on their fossil fauna, by Prof. A. Leith Adams, 145. *Totemism in Scotland in historic times, relics of, J. S. Phené on, 169. Traill (W. A.) on certain pre-carboniferous and metamorphosed trap-dykes, and the associated rocks of North Mayo, Ireland, 97. *Tramway car, a pneumatic, W. D. Scott-Moncreiff on, 233. *Transformation of gravity, J. Croll on the, 30. of pendulum-vibrations, R. H. M. Bosanquet on the conditions of the, *Valorous' expedition, the arenaceous Vanadium, J. Priestley on the physiological action of, 155. -—, L. Larmuth on the poisonous activity of, in ortho-, meta-, and pyrovanadic acids, 155. Variation in thickness of the middle Coal-measures of the Wigan coal-field, C. E. De Rance on the, 89. *Vénus, photographies du passage de, à Kobé, by Dr. J. Janssen, 40. *Voltaic action, Profs. Ayrton and Perry on the contact theory of, 42. battery, a new, H. W. Biggs on, 62. *Vortex rings, the resistance encountered by, and the relation between the vortex ring and stream-lines of a disk, Prof. O. Reynolds on, 31. Walenn (W. H.) on division-remainders in arithmetic, 30; *on Mr. Sabine's method of measuring small intervals of time, 52. Wallace (A. R.), Address by, to the Biological Section, 100. *Wanklyn (J. A.) on the effects of the mineral substances in drinking-water on the health of the community, 163. *Ward (F.) on the prevention of frau dulent alterations in cheques, &c., 70. *Water, drinking-, Prof. Wanklyn on the effects of mineral substances in, on the health of the community, 163. *Waves, the modification of the motion of, produced by fluid friction, Prof. J. Purser on, 31. of light and heat, G. J. Stoney on the amplitude of, 31. *Weldon (W.) on the means of suppressing alkali waste, 70. *Whale, the Greenland right, an account of dissections of the supposed rudimentary hind limb of, by Prof. Struthers, 163. an account of fingermuscles found in, by Prof. Struthers, 163. Wharfe, the valley of the, Yorkshire, Rev. E. Sewell on the drifts and boulders of the upper part of the, 95. *White-lead, J. Fergusson on, 63. *White Nile between Gondokoro and Appuddo, observations on the, by Lieut. W. H. Chippendall, 182. Wigan coal-field, C. E. De Rance on 22 the variation in thickness of the middle Coal-measures of the, 89. *Wilkinson (M. M. U.) on many-valued functions, 30. *Willett (W. H.) on the Sub-Wealden exploration, 97. *Williams (J. E.) on steam-ship resistance, 233. Williamson (Prof. W. C.), recent researches into the organization of some of the plants of the Coal-measures, 98; on some of the physiological and morphological features seen in the plants of the Coal-measures, 145. Windings of rivers in alluvial plains, experimental illustration of the origin of, by Prof. J. Thomson, 31. *Woman, the oldest in Scotland, General Sir J. Alexander on, 164. PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE. Life Members (since 1845), and all Annual Members who have not intermitted their Subscription, receive gratis all Reports published after the date of their Membership. 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