INDEX 11. 



249 



Objectives, large, H. Grubb on the ter^t- 

 iiigs of, 30. 



Oceanic deposits, J. Murray on the geo- 

 logical distribution of, 183. 



• and their origin, notes on, 



based on obser\ations made on board 

 H.M.S.'Challenger,' by J. Murray, 1 47. 



Old Red Sandstone, E. A. Wunschonthe 

 jimction of gianite and, at Corrie and 

 Glen Sanno.x, Arran, 98. 



Optical glass, the defects in, arising from 

 a want of homogeneity, II. Grubb on 

 a method of photographing, 37. 



•Original research, Dr. M'Gaun on the 

 organization of, 207. 



•Overcrowding in Liverpool, R. W. 

 Pitcher on, 208. 



Oxidation of terpenes, the limited, C. 

 T. Iluigzett on, 64. 



•Oxygen, G. J. Stoney on the atomicity 

 of, 69. 



Pandaneae of the Mascarene and Sey- 

 chelles Islands, I. B. Balfour on the, 

 142. 



Parallel motion, W. Hayden on, 16. 



•Parallel roads of Glen Roy, J. Macfad- 

 zean on the, 93. 



, D. MUne-Home on the, 93. 



•Passage of fluids through capillary and 

 other tubes. Prof. F. Guthrie and Dr. 

 F. Guthrie on the, 31. 



Patent legislation, St. J. V. Day on 

 recent attempts at, 198. 



•Paterson (Rev. J.) on a journey across 

 Finland, from ELlenborg to Arch- 

 angel via Kemi, 183. 



•Paton (Dr.) on the action and sounds 

 of the heart, 155. 



•Patterson (T. L. ) on sugar, 67. 



Peach (C. W.) on circinnate vernation 

 of Sphenopteris affinis from the earliest 

 stage to completion, and on the dis- 

 covery of Staphylopteris, a genus new 

 to British rocks, 94, 144. 



Pendidum-vibrations, the conditions of 

 the transformation of, R. H. M. Bo- 

 sanquet on, 45. 



Pengelly (W.) on an urn from Chud- 

 leigh, Devon, 169. 



•Pentachloride of phosphorus, the action 

 of, on tiu'pentine, Prof. Crum Brown 

 on, 62. 



•Perak and Salangore, W. D 'Almeida 

 on, 182. 



Perkin (\V. H.), Address by, to the 

 Chemical Section, 55 ; on some new 

 anthracene compounds, ()7. 



•Perry (Prof.) and Prof. .Vyrton on the 

 contact theory of voltaic action, 42. 



•Phen6 (J. S.) on relics of Totemism in 

 Scotland in historic times, KiO; *on 

 the Arthurian apple and the serpent 

 of the ancients, l(i9. 



•Phcenicians, C. 0. Groom Napier on 

 the, 165. 



'Phosphorite deposits of the south of 

 France, J. E. Taylor on the age, 

 fauna, and mode of occurrence of the, 

 96. 



Phosphorus, the difference in the 

 poisonous activity of, in ortho-, nieta-, 

 and pyro-phosphovic acids, Prof. Gam- 

 gee, John Priestley, and Leopold 

 Larmuth on, 151. 



*Photogi-aphy, solar, with reference to 

 the history of the solar surface. Dr. 

 J. .Tanssen on, 40. 



*Photonietric measiu'ements of the mag- 

 neto-electric light, by Capt. Abuev, 

 36. 



Phijsernarien {HaUphysema uud Gastro- 

 phtiaema), E. Haeckel iiber die, 153. 



Physical structure of tlie Highlands, 

 the Duke of Argyll on the, in con- 

 ue.\ion with th^ir geologicalhistory, 81. 



'Physiological action of pyro-, meta-, 

 and ortho-phosphoric acids, Prof. Gam- 

 gee on the, 64. 



* of sight, recent additional 



observations on the, by Prof. Dewar, 

 151. 



Physiology, Dr. J. G. M'Kendrick"s 

 Address to the Department of ..Ina- 

 tomy and, 1 26. 



Picoline and its derivatives. Dr. W. 

 Ramsay on, 67. 



*Pitcher (R. W.) on overcrowding in 

 Liverpool, 208. 



*Placenta, Prof. W. Turner on the 

 structure of the, in relation to the 

 theory of Evolution, 163. 



Plane cubics of the third class with a 

 double and a single focus, H. M. Jef- 

 fery on, 17. 



Plants of the Coal-measures, Prof. W. 

 C. ^^^illiamson on some of the physi- 

 ological and moi-phological features 

 seen in the, 145. 



Playfair (Col. R. L.) on travels in 

 Tunis in the footsteps of Bruce, 183. 



•Pneumatic tramw.ij'-car, W. D. Scott- 

 MoncreifTon a, 23.3. 



Polarization, rotation of the plane of, 

 by reflection from a magnetic pole, 

 Dr. J. Kerr on, 40. 



♦Pollution of rivers. Rev. R. Thomson 

 on the prevention of, 70. 



Poor law, the Scottish, A. M'N. Caird 

 on some special evils of, 197. 



