250 



REPORT — 1876. 



Porter (Prof.) on some points of interest 

 in the physical conformation and an- 

 tiquities of the Jordan valley, 184. 



Portstewart, additional remarks on the 

 finding of prehistoric objects at, by 

 W. J. linowles, 166. 



Pre-carboniferous and metamorphosed 

 trap-dykes, and the associated rocks 

 of North Mayo, Ireland, W. Traill on 

 certain, 97. 



Precessional motion of a liquid. Sir W. 

 Thomson on the, 33. 



Priestley (.1.) on the physiological action 

 of vanadium, 155 ; on the physiolo- 

 gical action of chromium, 156. 



, Prof. Gamgee, and L. Larmuth 



on the difference in the poisonous ac- 

 tivity of phosphorus in ortho-, meta-, 

 and pyrophosphoric acids, 151 ; on the 

 action of pjTophosphoric acid on the 

 circulation, 152. 



Primitive agriculture, A. W. Buckland 

 on, 164. 



Pritchard (Dr. U.) on the termination 

 of the nerves in the vestibide and 

 semicircular canals of Mammals, 156 ; 

 *on a microscope adapted for showing 

 the circidation in the human subject, 

 158. 



•Purser (Prof. J.) on the modification 

 of the motion of waves produced by 

 fluid friction, 31. 



*Putumayo or I^a, the river. South 

 America, A. Simson on, 184, 



Pyrophosphoric acid, the action of, on 

 the circulation, Prof. Gamgee, J. 

 Priestley, and 1j. Larmuth on, 152. 



•Pyrotartaric acid, remarks, by W. 

 Dittmar, on Reboul's paper on, 63. 



Radiometer, W. Crookes on the in- 

 fluence of the residual gas on the 

 movement of the, 30. 



•Hallway appliances, R. R. Hai-per on 

 improvements in, 225. 



* trains, W. Stroudley on com- 

 munications between passengers and 

 guards in, 233. 



Railways on three-foot gauge in the 

 United States, Capt. D. Galton on, 

 224. 



Raised beach on the Cumberland coast, 

 between Whitehaven and Bowness, 

 R. Russell and J. V. Holmes on the, 

 95. 



Ramsay (Dr. W.) on picoline and its 

 derivatives, 67. 



*Rayleigh (Lord) on the forces ex- 

 perienced by a lamina immersed ob- 

 liquely in a fluid stream, 31. 



•Reboul's paper on pyro-tartaric acid,W. 

 Dittmar on, 63. 



•Red soil of India, Dr. Gilchrist on the, 

 90. 



Residual gas, the influence of the, on the 

 movement of the radiometer, W. 

 Crookes on, 30. 



•Reuleaux's treatment of mechanisms. 

 Prof. A. B. W. Kennedy on, 226. 



•Revolver photographique en astronomie 

 et en biologie. Dr. J. Janssen sur les 

 usages du, 40. 



•Reynolds (Dr. J. E.) on glucinum, its 

 atomic weight and specific heat, 68. 



* (Prof. 0.) on the resistance en- 

 countered by vortex rings, and the 

 relation between the vortex ring and 

 stream-lines of a disk, 31 ; on the in- 

 vestigation of the steering qualities of 

 ships, 229. 



•Right-handedness, J. Shaw on, 169. 



•Rivers, Rev. R. Thomson on the pre- 

 vention of the pollution of, 210. 



Romanes (G. J.), phj'siology of the 

 nervous sj'stem of Medusre, 158. 



•Romer (Dr. F.) on the mountain lime- 

 stone of the west coast of Sumatra, 

 95. 



Ross (Rev. W.) on the educational value 

 of their native language to the Gaelic- 

 speaking population of Scotland, 208. 



Rowan (F. J.) on boiler incrustation 

 and corrosion, 229. 



Russell (F.) on Sheriff courts and rela- 

 tive judicial statistics, 208. 



(R.) and J. V. Holmes on the 



I'aised beach on the Cumberland coast, 

 between Whitehaven and Bowness, 

 95. 



•Sabine's, Mr., method of measuring 



small intervals of time, W. H. Walenn 



on, 52. 

 Safety-apparatus, improved, for mine- 

 hoists and warehouse-lifts, T. Dobson 



on, 222. 

 * lock for facing-points, M. Evans 



on, 223. 

 * valve, a spherical pendulous, J. 



Nasniyth on, 229. 

 Sage, essential oil of, M. M. P. Muir on, 



65. 

 •Salangore, Perak and, W. B. D'Almeida 



on, 182. 

 Saline solutions, dilute, the action of, 



upon lead, M. M. P. Muir on, 60. 

 •Samoan Archipelago, Dr. L. Forbes on 



the, 183. 

 •Sand-bars, M. Bergeron on the removal 



of, from harbour-mouths, 219. 



