230 



REPORT — 1860. 



Oolites, lower, of Oxfordshire, J. F. 

 Whiteaves on the invertebrate fauna of 

 the, 104. 



Optical illusions connected with inversion 

 of perspective, Sir D. Brewster on, 7. 



Organic remains, A. Gages on some trans- 

 formations of iron pyrites in connexion 

 with, 79. 



Osborn (Captain Sherard) on the forma- 

 tion of oceanic ice in the arctic regions, 

 170. 



Ossiferouscavesin Sicily, newlydiscovered, 

 Baron Anca on, 73. 



Owen (Prof.), letter to Mr. E. Chad wick 

 on the physiological limits to mental 

 labour, 189. 



Oxford, notice of the new geological map 

 of the vicinity of, by Sir R. Murchison, 

 90. 



Oxfordshire, J. F. Whiteaves on the inver- 

 tebrate fauna of the lower oolites of, 

 104. 



Oxygen, Prof. W. A. Miller on the atomic 

 weight of, 70. 



Oxygenation in animal bodies, Dr. W. B. 

 Richardson on the process of, 143. 



Palliser (Capt.), on the course and results 

 of the British North American Explor- 

 ing Expedition, 170. 



Paper, rice-, from the pith of the Aurelia 

 papyrifera, W. Lockhart on, 1 69. 



Paralysis, K. Garner on alterations in the 

 medulla oblongata in cases of, 129. 



Peach (C. W.), a"new form of ichthyolite 

 discovered by, 78 ; on the statistics of 

 the herring fishery, 120. 



Pembrokeshire, Rev. G. N. Smith on three 

 undescribed bone caves near Tenby, 

 101. 



Pengelly (William) on the chronological 

 and geographical distribution of the 

 Devonian fossils of Devon and Corn- 

 wall, 91. 



Perspective, inversion of, Sir D. Brewster 

 on some optical illusions connected with 

 the, 7. 



Peruvian bark, the places where the tree 

 grows which yields the, 162. 



Petherick (Consul) on his proposed jour- 

 ney from Khartum in Upper Egypt to 

 meet Capt. Speke on or near the lake 

 Nyanza of Central Africa, 174. 



Phillips (Prof.) on the geology of the 

 vicinity of Oxford, 90. 



Photography, celestial, H. Draper on a 

 reflecting telescope for, erecting at 

 Hastings near New York, 63. 



Physics as a branch of the science of mo- 

 tion, J. S. S. Glennie on, 56, 



Pierce (Prof. B.) on the dynamic con- 

 dition of Saturn's rings, 37 ; on the 

 motion of a pendulum in a vertical 

 plane when the point of suspension 

 moves uniformly on a circumference in 

 the same plane, 37; on the physical 

 constitution of comets, 37. 



Pile with sulphate of lead,M.E.Becquerel 

 on a, 59. 



Placodus, teeth of the, discovered in the 

 triassic drift, in the neighbourhood of 

 Frome, by C. Moore, 88. 



Pliosaurus, a paddlo of, found at Kim- 

 meridge, 75. 



Planets, J. S. S. Glennie on a general law 

 of rotation applied to the, 58. 



Plant and an animal, J. Hogg on the dis- 

 tinctions of a, 111. 



Plants, British, Rev. W. S. Symonds on 

 the selection of a peculiar geological 

 habitat by some, 102. 



, on the morphological laws in, 110. 



, M. T. Masters on the normal and 



abnormal variations from an assumed 

 type in, 112. 



on the final causes of the sexuality 



of, in reference to Mr. Darwin's theory, 



109. 

 Playfair (Dr. Lyon) on the representation 



of neutral salts, 71. 

 Poisoning, E. R. Harvey on the mode of 



death by aconite, 133. 

 Polar expedition (Franklin's), Capt. Snow 



on the, and the possible recovery of its 



scientific documents, 180. 

 Polarization, plane of, Prof. Jellelt on a 



new instrument for determining the, 



13. 

 , M. Verdet on the dispersion of the 



planes of, of the coloured rays produced 



by the action of magnetism, 54. 

 Poncelet's theorems for the linear repre- 

 sentation of quadratic radicals, Prof. 



Sylvester on a generalization of, 7. 

 Ponton (M.) on the laws of chromatic 



dispersion, 16. 

 Porter (H. J. Ker) on the best plan of 



cottage for agricultural labourers, 194. 

 Powrie (J.) on a fossiliferous deposit near 



Farnell, in Forfarshire, 89. 

 Prestwich (Joseph) on some new facts in 



relation to the section of the cliff at 



Mundesley, Norfolk, 90. 

 Price (J.) on Cydippe, 120 ; on slicken- 



sides, 91. 

 Price (Rev. Prof.), address as President 



of Section A, 1. 

 Pterodactyles of the Coprolite bed near 



Cambridge, Rev. J. P. B. Dennis on 



the mode of flight of the, 76. 



