SECTIONS. INDEX OF SUBJECTS. 



285 



Ophiocaryon paradoxa (the snake-nut tree), 

 Sir R. Schomburgk on the, 1844, 71. 



Ophthalmia, purulent, Dr. Kennedy on, 

 1835, 105. 



Opianyle, a product of decomposition of 

 narcotine, 1854, 64. 



Opium, Dr. T. Thomson on its value as a 

 remedy in rheumatism, 1841, 78. 



, on the relation of meconine and pa- 

 paverine to the other constituents of, by 

 Prof. T. Anderson, 1854, 64. 



Opossum, great dog-headed. Prof. Owen on 

 the, 1841, 70. 



Optical characters. Sir D. Brewster on their 

 value in the discrimination of mineral 

 species, 1834, 575. 



elasticity in oblique prisraatical cry- 

 stals, Prof. Miller on the positions of the 

 axes of, 1834, 556. 



illusions of spectral phenomena, ap- 

 paratus for exhibiting, by H. Dircks, 1858, 



illusions connected with the inversion 



of perspective. Sir D. Brewster on, 1860, 7. 



instrument, new. Sir J. Robison on a, 



1842, 27. 



— — phenomena, R. Potter on an instru- 

 ment for photometry by comparison, and 

 on some applications of it to, 1831-32, 

 556. 



phenomena in the crystalline lens 



during the absorption of distilled water, 

 Sii* D. Brewster on the cause of, 1837, 

 II. 



phenomenon, singular, seen at sunset, 



Prof. Christie's account of a, 1837, 15. 



phenomena observed at Mont Blanc 



by M. De la Rive, 1837, 10 ; Sir J. W. 

 Lubbock's explanation of it, 31. 



phenomena. Rev. Prof. Powell on some 



1839, I. 

 • phenomena : Rev. S. Earnshaw on the 



rings which surround the image of a star 



formed by the object-glass of a telescope, 



1845, 10. 

 phenomenon observed by the Rev. W. 



Selwyn, Sir D. Brewster on the cause of 



an, 1844, 8. 

 properties of Cadmacetite, W. Haidin- 



ger on the, 1855, 11. 

 " properties of Chabasie, Prof. Johnston 



on the, 1835, 44. 



properties of phosphorus. Dr. J. H. 



G-'adstone and Rev. T. P. Dale on the, 

 1858, 15. 



properties of the cyanurets of plati- 

 num and magnesia, and of barytes and 

 platinum, Sir D. Brewster on the, 1850, 5. 



properties of a recently discovered salt 



of quinine, Prof. G-. G. Stokes on the, 

 1852, 15. 



Optics, Sir W. R. Hamilton on a character- 

 istic function in, 1833, 360. 



• , Sir D. Brewster on the form of images 



produced by lenses and mirrors of ^- 

 ferent sizes, 1852, 3. 



Optics, mathematical, SirW. R.Hamilton on 

 a view of, 1831-32, 545. 



Orang-utan, on the teeth of the, 1838, 148. 



Orbitolites complanatus, on the structure 

 and development of, by Dr. W. B. Car- 

 penter, 1855, 107. 



Ordnance, on improvements in, by Capt. 

 Blakely, 1857, 179. 



Ordnance Geological Museum, Prof. Phil- 

 lips's notice of the, 1843, 61. 



survey of Templemore, C. Babbage on 



the statistics in the, 1835, 118. 



survey, Prof W. N. Hancock on th» 



use to be made of the, in the registration of 

 judgments and deeds in Ireland, 1849, 93. 



Ores, haematite, of North Lancashire and 

 West Cumberland, Prof. Phillips and R. 

 Baker, jun. on the, 1858, 106. 



Organ machinery, J. A. Forster on improve- 

 ments in, 18.53, 117. 



Organs, on the application of mechanical 

 power to the bellows of, by D. Joy, 1858,2 1 3. 



Organic analysis. Prof. Bunsen on a new 

 mode of estimating nitrogen in, 1840, 77, 



analysis, Dr. Percy on a gas-furnace 



for, 1846, 49. 



bases. Dr. T. Anderson on the action 



of oxidizing agents on certain, 1850, 47. 



bodies, method for determining tho 



amount of nitrogen in, 1841, 53. 



bodies. Dr. De Vrij on the analyses of 



the inorganic constituents of, 1847, 59. 



bodies, on a more systematic nomen- 

 clature for, by G. C. Foster, 1857, 45. 



chemistry, Dr. Kemp on a natural 



system of, 1845, 31. 



colours, Dr. G. Wilson on the influ- 

 ence of sunlight over the action of the dry 

 gases on, 1850, 61;. 



compounds, R. Rigg on the ultimate 



analysis of, 1837, 50. 



compounds containing metals. Prof. 



Frankland on some, 1855, 62. 



compounds, on a method of deter- 

 mining sulphur and phosphorus in, by 

 Prof. Voelcker, 1855, 73. 



life, minute forms of, in the rocks of 



Barbados, Sir R. H. Schomburgk on, 1847, 

 72. 



matter in water. Prof. Forchhammer 



on a method of ascertaining the quantity 

 of, 1849, 37. 



nature, on the genetic cycle in, by Dr. 



Ogilvie, 1859, 1 72. 



remains. Rev. Dr. Young on the anti- 

 quity of, 1838, 95. 



remains of saurians and sauroid fishes 



from the new red sandstone of Warwick- 

 shire, 1839, 73. 



• remains of the limestones and slates of 



South Devon, 1839, 69. 



remains of the Warwick sandstone, 



1839, 75. 



remains, fossil, of the south-east coast 



of Cornwall, and of Bodmin and Men- 

 heniott, C. W. Peach on the, 1841, 61. 



