194 



SECTIONS. INDEX OF AUTHORS. 



Van der Hoeven (Prof.) on the genus Pero- 

 dicticus of Bennett, and its relation to 

 Stenops, 1850, 125. 



on the anatomy of Stenops Potto, 1860, 



134. 



on the Teredo nayalis, 1860, 136. 



*Van de Velde (Chevalier), explorations in 

 Syria and Palestine, 1852, 1 14. 



*Vandey (Consul) on the Upper Nile, 1852, 

 114. 



Varley and Clarke (Messrs.) on the elastic 

 malleable iron tube, as a means of deve- 

 loping the principle of atmospheric pro- 

 pulsion on railways, 1847, 132. 



Varley (C.) on a graphic telescope, 1853, 

 10. 



on natural occurrences that impair the 



vision of good telescopes, 1854, 48. 



Varley (C. F.) on improvements in sub- 

 marine and subterranean telegraph com- 

 mimications, 1854, 17. 



on some of the methods adopted for 



ascertaining the locality and nature of 

 defects in telegraphic conductors, 1859, 

 252. 



Varrentrapp (Dr.) on determining the 

 amount of nitrogen in organic bodies, 

 1841, 53. 



and Prof. Redtenbacher on the con- 

 stitution and products of the distillation 

 of fat bodies, 1840, 76. 



Vaughan (D.) on meteoric astronomy, 1854, 

 z6. 



, secular variations in lunar and ter- 

 restrial motion from the influence of tidal 

 action, 1857, 40. 



• on the light of suns,, meteors, and 



temporary stars, 1857, 42. 



on the effects of the earth's rotation 



on atmospheric movements, 1859, 41. 



on the growth of trees in continental 



and insular climates, 1859, 140. 



Velasquez de Leon (Lt.-Col.) on the go- 

 vernment-map of Mexico, 1838, 98. 



Verdet (M.) on the dispersion of the planes 

 of polarization of the coloured rays pro- 

 duced by the action of magnetism, 1860, 



54- 



Vericour (M. Raymond de), ethnological 

 outlines of France, 1847, 127. 



Verloren (Dr.) on the effect of temperature 

 and periodicity on the development of 

 certain Lepidoptera, 1860, 123. 



Verneuil (E, de). Sir R. I. Murchison on 

 the geological structure of Spain, to ex- 

 plain an outline general map of the Pe- 

 ninsula by, 1850, 108. 



* on the geological structure of Spain, 



1852, 62. 



Verschoyle (Archdeacon) on the trap dykes 

 of Mayo and Sligo, 1835, 59. 



Versmann (F.) on the comparative value of 

 certain salts for rendering fibrous sub- 

 stances non-inflammable, 1859, 86. 



VicARY (Major) on the geolo^ of a portion 



of the Himalaya mountains, 1852, 62. 



V1GNOLE8 (Archdeacon) on bog timber, 1835, 

 76. 



*ViGNOLES (C.) on the construction of rail- 

 roads, 1835, 108. 



* on percussion boring of tunnels, 1839, 



on the economy of railways in respect 



of gradients, 1840, 193. 



on timber bridges, in special reference 



to railways, 1840, 195. 



, abstract of a lecture upon the atmo- 

 spheric railway, 1842, 100. 



on straight axles for locomotives, 1842, 



104. 



on the best form of rails and the upper 



works of railways generally, 1842, 106. 



on the use of b^ton and concrete in 



constructing breakwaters, 1842, 112. 



, notice of M. Bergeron's method of 



instantaneously casting loose the locomo- 

 tive engine, 1842, 1 14. 



Vivian (E.) on the phenomena of Kent's 

 Cavern, 1847, 73. 



on printing photographs, with sugges- 

 tions for introducing clouds and artistic 

 effects, 1856, 18. 



on the climate of Torquay and South 



Devon, 1856, 48. 



, researches in Kent's Cavern, Torquay, 



with the original MS. memoir of its first 

 opening, 1856, 78. 



on the earliest traces of human remains 



in Kent's Cavern, 1856, 119. 



, results of his new self -registering hy- 

 grometers, 1860, 55. 



VoELCKER (Dr. A.) on the composition of 

 the ash of Armeria maritima, grown in 

 different localities, and remarks on the 

 geographical distribution of that plant, 

 and the presence of fluorine in plants, 



1849, 43. 



on the proportion of phosphoric acid 



in some natural waters, 1850, 63. 



on the percentage of nitrogen as an 



index to the nutritive value of food, 1850, 

 64. 



on the effects of salt on vegetation, 



1850, 114. 



on caseine, and a method of deter- 

 mining sulphur and phosphorus in or- 

 ganic compounds in one operation, 1855, 



73- 



* on the composition of American 



phosphate of lime, 1856, 58. 



* on the corrosive action of smoke on 



building-stones, 1856, 58. 



* on basic phosphates of lime, 1856, 



58. 



on the composition of Norwegian apa- 

 tite, .1857, 59. 



r- on the proportion of organic phos- 

 phorus in legumine, 1857, 60. 



— — on the methods of analysing the su- 

 perphosphates, 1857, 60. 



on the constitution of the mineral 



portion of bones, and the analysis' of 



