INDEX II. 



279 



N tepee de St. Victor (M.) on two new 

 photochemical experiments, 260. 



Nineveh, on the decomposed glass found 

 at, 11. 



Northumberland, on some basaltic for- 

 mations in, 108. 



Notonecta, on the method of production 

 of sound by a species of, 173. 



Nourse (W. E. C.) on the colours of leaves 

 and petals, 138 ; on the habits and in- 

 stincts of the chameleon, 153 ; on the 

 organs of the senses, and on the men- 

 tal perceptive faculties connected with 

 them, 171. 



Numbers, on certain properties of the 

 powers of, 248. 



Nyanza lake, on the discovery of, in 

 Central Africa, 266. 



Object-glasses, on the focus of, 61. 



Odling (W.) on Marsh's test for arsenic, 

 75 ; on the composition of Thames 

 water, ib. ; on a new mode of bread- 

 making, 76. 



Ogilvie (Dr. George) on the vegetative 

 axis of ferns, 139 ; on the genetic cycle 

 in organic nature, 172. 



Oidema, on skeletons of, from the pleisto- 

 cene brick-clays of Stratheden, 120. 



Oil, dugong, 256. 



Oliphant (Laurence), notes on Japan, 194. 



Opium poppy of China, on the cultivation 

 of the, 136. 



Optic thalami, on certain imperfectly 

 recognized functions of the, 265. 



Oreston, on the origin of the ossiferous 

 caverns at, 110; on the ossiferous fis- 

 sures at, 121. 



Organization, on the molecular theory of, 

 265. 



Orkney, on the climate of, 48. 



Osborne (Capt. Sherard) on the Yang- tse- 

 kiang, and its future commerce, 196. 



Ossiferous fissures at Oreston, on the, 121. 



Oxides, on a symmetrical arrangement of, 

 259. 



Page (D.) on the skeletons of Surf and 

 Eider ducks, with the remains of seals 

 from the pleistocene brick-clays of 

 Stratheden, 120; on the structure, affi- 

 nities and geological range of the crus- 

 tacean family Eurypteridae, ib. 



Painting, on the angular measurement of 

 the picture in, 64. 



Palm, vegetable ivory, on some uses to 

 which the nuts of the, is applied, 130. 



Pan for evaporating saccharine solutions 

 and other liquids at a temperature be- 

 low 180° Fan*, 230. 



Parasitism among the Pycnogonidae, on a 

 form of, 143. 



Paris (Admiral) on the manoeuvring of 

 screw vessels, 240. 



Peach (W. C.) on fossil fish, new to the old 

 red sandstone of Caithness, 120; on 

 different subjects in natural history, 

 155; on the zoophytes of Caithness, 

 ib. 



Pecten, on the structure of the shell in 

 some species of, 147. 



Pengelly ( W.) on the ossiferous fissures at 

 Oreston near Plymouth, 121. 



Pentethyl-stibene, on, 66. 



Peru, southern, on the geography of, 177. 



Petals, on the colours of, 138. 



Petherie (Consul),exploration of theWhite 

 Nile, 265. 



Phalangista recently killed in the county 

 of Durham, on a species of, 149. 



Pheasants, on the varieties and species of 

 new, recently introduced into England, 

 148. 



Phillips (Major) on some curious discover- 

 ies concerning the settlement of the 

 seed of Abraham in Syria and Arabia, 

 197. 



Phipson (Dr. T. L.) on some new cases of 

 phosphorescence by heat, 76 ; on the 

 composition of the shell of Cardium 

 edule, 77 ; on the composition of a re- 

 cently-formed rock on the coast of 

 Flanders, ib. 



Phonautograph, on the, 62. 



Phosphates, on combinations of earthy, 

 with alkalies, 88. 



Phosphoroscope, on Becquerel's, 62. 



Photochemical experiments, on two new, 

 260. 



Photographs of fluorescent substances, 

 on, 69. 



Photography, use of platinum in, 258. 



Photometer, on a new, 62. 



Physics, 1, 58, 245. 



Physiology, 126, 159, 265. 



Phytelephas macrocarpa, on some uses to 

 which the nuts of the, are applied, 

 130. 



Planetary orbits, on the inclination of 

 the, 34. 



Plants, on remarkable, found in Braemar, 

 133 ; on the aversion of certain, to the 

 neighbourhood of each other, ib. ; on 

 the temperature of the flowers and 

 leaves of, 135 ; on the theory of the 

 metamorphosis of, 136; cycadaceous, 

 grown in England, 142. 



Platinum, use of, in photography, 258. 



Playfair (Dr. Lyon), address to the Che- 

 mical Section, 65 ; on a symmetrical 



