SECTIONS,— INDEX OF SUBJECTS. 



267 



light of different colours, on the unequal 

 sensibility of the foramen centrale to, 

 by Prof. J. 0. Maxwell, 1856, 12. 



, on an instrument for exhibiting the 



colours of liquids by transmitted, 1852, 

 20. 



•■ -, on its influence on polarized elec- 

 trodes, by W. R. Grove, 1858, 17. 



from a low form of combustion, Dr. 



C. J. B. WilHams on, 1834, 588. 



, artificial, Prof. Davy on a new gas for, 



1836, 62. 



, Sir D. Brewster on a new property of, 



1837, 12. 



, Sir D. Brewster on a new property of, 



exhibited in the action of chrysammate 

 of potash upon common and polarized 

 light, 1847, 7. 



, photochemical researches, with refer- 

 ence to the laws of the chemical action of, 

 by Prof. Bunsen and Prof. Roscoe, 1855, 

 48. 



, on its influence in preventing chemical 



action, by E. Hunt, 1848, 54. 



, its action on plants, by Dr. Daubeny, 



1833, 436. 



, R. Hunt on its influence on the growth 



of plants, 1843, 35. 



, its action on the germination of seeds, 



by Dr. Daubeny, 1855, 56. 



, effect of, as a part of vital statistics, 



1843, 96. 



, E. Mallet on its chemical action in 



the decoloration of recent solutions of 

 caustic potass, 1838, 61. 



, Sir D. Brewster on the action of two 



blue oils upon, 1843, 8. 



, Mr. Scanlan on the blackening of ni- 

 trate of silver by, 1838, 63. 



, E. Hunt on its influence on metallic 



and other compounds, 1843, 35. 



, on the action of the red, orange, and 



yellow rays upon iodized and bromo- 

 iodized silver plates, by A. Claudet, 1 848 ,50. 



, electrical. Prof. Wheatstone on the 



prismatic decomposition of, 1835, 1 1. 



, electric, M. Serrin on an automatic 



regulator for, 1860, 19. 



, Sir D. Brewster on the geometric 



forms, and laws of illumination of the 

 spaces which receive the solar rays, trans- 

 mitted through quadrangular apertures, 

 1842, 15. 



, Sir D. Brewster on the combined ac- 

 tion of grooved metallic and transparent 

 surfaces upon, 1838, 13. 



, solar, analysis of, by Sir D. Brewster, 



1831-32, 89. 



, solar. Dr. Daubeny on apparatus for 



obtaining a numerical estimate of the in- 

 tensity of, 1839, 6. 



: of Sims, meteors, and temporary stars, 



D. Vaughan on the, 1857, 42. 



, zodiacal, observations on, by E. J. 

 Lowe, 1851, 24. 

 under water, W. S. Ward on an ap- 



paratus for giving, in diving operations, 



1847, 132. 



Light, heat, and motion. Prof. W. Thomson 

 on mechanical antecedents of, 1854, 59. 



— — , heat, electricity, magnetism, and gra- 

 vitation, J. Goodman on the identity of 

 the existences or forces of, 1848, 53. 



Lighthouse apparatus, revolving, W. Swan 

 on the limits to the velocity of^ 1850, 191. 



Lighthouses, an economical Hght for, 1834, 



595- 

 Lightia lemmscata, Sir R. Schomburgk on, 



1844, 71. 

 Lightning, on the form of, by J. Nasmyth^ 



1856, 14. 



: , report of a Committee on the effects 



produced by, on a tree near Edinburgh, 



by Prof. Phimps, 1850, 13. 

 , notice of a tree struck by, in Clande- 



boye Park, by Sir D. Brewster, 1852, 2. 

 ■ , account of some extraordinary effects 



of, on the packet-ship ' New York,' by the 



Eev. Dr. Scoresby, 1831-32, 567. 

 , Sir W. S. Harris on the protection 



afforded by metallic conductors against 



heavy strokes of, 1847, 23. 

 conductors, facts to illustrate the effect 



of, 1831-32, 568. 



conductors, Prof. Faraday on, 1854, 



158. 



conductor for chimneys, J. Nasmyth. 



on a, 1854, 158. 



conductors, G. J. Symons on employ- 

 ing the gutters and rain-water pipes of 

 private houses as, 1860, 52. 



Lights, percussion, for preventing collisions 

 at sea and on railways, by Capt. Leach, 



1857, 181. 



Lignin of wheat, W. C. Jones on nitrogen 

 in the, 1836, 75.^ 



Lignites of the Giant's Causeway and the 

 Isle of Mull, Prof. Harkness on the, 1856, 

 66. 



Limagne d'Auvergne, Sir E. I. Murchison 

 on the tertiary lacustrine deposits of the, 

 1850,96. 



Limax, Eev. B. J. Clarke on the L-ish spe- 

 cies of the genus, 1843, 73. 



Sowerbii, Prof. Allman on certain pe- 

 culiarities in the anatomy of, 1846, 82. 



variegatus, in the human intestines, 



Dr. D. Williams on, 1837, 98. 



Lime, borate of, notice of some specimens 

 of, 1854, 75. 



, carbonate of, G. Gladstone on a re- 

 markable deposit of, about fossils in the 

 lower lias of Dorsetshire, 1858, 51. 



; flowers, or peculiarly formed sub- 

 stances, from a reservoir, T. J. Pearsall 

 on, 1853, 45. 



, phosphate of, bed in the Isle of Wight, 



Capt. Ibbetson on the position of the, 



1848, 69. 



, rosolate of, on its formation on cotton 



fabrics in hot climates, by Prof. E. C. 

 Calvert, 1859, 68. 



