"324 



SECTIONS. — INDEX OF SUBJECTS. 



. IT Ctemmorum, a variable star, N, Pogson 

 on, 1859, 36. 



Ulmic acid from peat. Prof. J. F. W. John- 

 ston on, 1840, 83. 



Undulatory theory, Sir J. F. W. Herschel on 



. the absorption of light by coloured media 

 viewed in connexion with the, 1833, 373. 



.^■^ theory of light, Eev. Prof. Powell on 



the phenomena of prismatic dispersion, 

 in relation to the, 1835, 5. 



theory of light, Rev. Prof. Powell on 



Von Wrede's explanation of the absorp- 

 tion of light by the, 1837, 16. 



theory : Sir D. Brewster on Mr. Airy's 



explanation of a new polarity of light, 

 1845," 7. 



r—^ theory : Rev. Prof. Challis and Prof. 

 Gr. Gr. Stokes on the aberration of light, 

 1845, 9. 



Unio, Dr. Man tell on a newly-discovered 

 species of, 1844, 4.2. 



Roissii, discovered near Boughton, in 



. Craven, notice of, 1837, ico. 



Universe, Prof. W. J. M. Rankine on the re- 

 concentration of the mechanical energy of 

 the, 1852, 12. 



Upton draining tool, A. Milward on the, 

 1849, 122. 



Upupa, Linn., and Irrisor, Lesson, Prof. 

 Strickland on the structure and affinities 

 of, 1843, 70. 



Uramile, Prof. Gregory on the preparation 

 of 1840, 74. 



Urea, Prof. Gregory on the pre-existence of, 

 in uric acid, 1840, 73. 



as a direct source of nitrogen to vege- 

 tation, Dr. C. A. Cameron on, 1857, 44. 

 -Urethra, H. Earle on the, 1833, 460. 



Uria troile and U. lacrymans, Rev. F. O. 



.' Morris on the specific distinctions of, 

 1857, 105. 



Uric acid. Prof. Liebig on the products of 

 the decomposition of, 1837, 38. 



:.- — '- acid, Prof. Gregory on the pre-exist- 

 ence of urea in, 1840, 73. 



Urinary salts, Sir J. Murray on the dis- 

 ordered conditions of the human body 



• caused by, 1837, ic6. 



Urn, Anglo-Saxon, C. R. Smith on a Roman 

 sepulchral inscription on an, 1855, 145. 



.Urate Majoris, R & S, variable stars, N. 



Pogson on, 1859, 36. 

 -Urticaceffi, Dr. H. Cleghorn on the manu- 

 - facture of textile fabrics from species of 

 /- the, 18b0, 112. 



Usury laws, Prof. W. N. Hancock on the, 

 ,.'1849; 93. 



Uterine decidua. Dr. W. F. Montgomery 

 on a peculiarity in the structure of, 1836, 



.. '• " haemorrhage, R. Torbock on the mode 

 - of arresting, 1838, 133. 



Vaccinationinid small-pox, statistics of, in the 

 United Kingdom, by Dr. W. Moore, 1859, 



Vaccine virus (new) of 1838, J. B. Estlin on 



the, 1839, 105. 



virus preserved in glycerine, 1857, 115. 



Vacuum tubes, electrical. Prof. W. B. Rogers 



on the phenomena of, 1860, 30. 

 Valerianic acid from indigo. Dr. J. S. Mus- 



pratt on the supposed formation of, 1844, 



Valve, india-rubber, for drainage of low- 

 lands into tidal outfalls. Prof. J. Thom- 

 son on an, 1855, 210. 



, safety-, for steam-boilers, J. Hopkin- 



son on a, 1853, 119. 



Valve engine, rotatory, Locking and Cook's, 

 notice of, 1853, 120. 



Valve regulator, balanced, for stoves. Dr. 

 Arnott on the, 1847, 47. 



Valves, stopcocks, &c., on improve^ients in, 

 for regulating the passage of fluids, by G. 

 Buchanan, 1850, 171. 



Vanadic acid, Prof. J. F. W. Johnston on 

 some crystals of, 1831-32, 78. 



Vanadium, account of, by Prof. J. F. W. 

 Johnston, 1831-32, 78. 



Vandyke-brown, T. H. Rowney on the com- 

 position of, 1850, 70. 



Vandykite, the mineral, T. H. Rowney on, 

 1855, 70. 



Vanilla of commerce. Prof. Morren on its 

 production in Europe, 1838, 116. 



Vapour, Capt. Shortrede on the force of, 

 1846, 16. 



, T. Hopkins on computing the quan- 

 tity of, in a vertical column of the atmo- 

 sphere, 1849, 24. 



, aqueous, of the atmosphere, Admiral 



FitzRoy on the, 1859, 50. 



, aqueous, superheated, apparatus for 



transforming it into illuminating gas, 

 MM. Isoard and Son on, 1859, 69. 



Vapours, saturated, J. J. Waterston on the 

 gradient of density in, 1852, 2. 



, saturated, and their liquids, J. J. 



Waterston on the density of, at the point 

 of transition, 1853, 1 1. 



, on practical tables of the latent heat 



of, by Prof. W. J. M. Rankine, 1855, 208. 



, on formulae for the maximum pressure 



and latent heat of, by Prof. W. J. M. Ran- 

 kine, 18.54, 58. 



Variations, calculus of, Prof. Lindelof on 

 the, 1859, 5. 



Variola- Vaccinia, Dr. Inglis on the origin 

 of, 1839, 104. 



Vascular system of the lower Annulosa, 

 Prof. Huxley on the, 1854, 109. 



Vegetable cells, Prof. Henfrey on the deve- 

 lopment of, 1845, 68. 



food-stuffs, on estimating the cellular 



matter or " woody fibre" in, by T. Se- 

 gelcke, 1859, 79. 



■ growth, G. W. Hall on the promotion 



of, 1842, 64. 



— : — impregnation, Dr. Aldridge on, 1840, 



I44- 

 morphology, and the theory of the me- 



