SECTIONS.-^INDEX OF SUBJECTS. 



235 



public opinion with respect to the evils 



produced by the traffic in, by Eev. W. 



Caine, 1859, 205. 

 Dropsy, on some cases of, 1837, 125. 

 Drosera, Dr. Lankester on the epidermal 



appendages of the genus, 1850, 113. 

 Druid circles, Col. J. Forbes on, 1869, 



178. 

 Dryobalanops camphora. Dr. De Vrij on 



solid and liqmd camphor from the, 1851, 



Dry rot, R. Davison on, 1849, 114. 



Dublin Foundling Hospital, Dr. Maunsell 

 on the statistics of, 1835, 113. 



— — Lying-in Hospital, registry kept in, 

 1835, 106. 



Normal School, 1835, 125. 



Dugong oil, J. S. Brazier on, 1859, 

 256. 



Dumbness, deafness, and blindness. Dr. 

 Fowler on a case of, 1841, 81. 



Dunnottar Castle and the Girdleness, on 

 the section of the coast between, by Rev. 

 Dr. Longmuir, 1859, 261. 



Duodenum, Sir D. J. H. Dickson on the 

 rupture of the, 1839, 94. 



Dura Den, new fossil form ( — ? Dalglei- 

 sianap) from, 1850, 70. 



sandstone, Rev. Dr. Anderson on the, 



1859, 97. 



Dutch possessions in the East, remarks on 

 the, by Col. Sykes, 1848, 112. 



Dwellings for the poor, Metropolitan So- 

 ciety's, St. Pancras, statistical account of 

 the, 1849, 108. 



Dye, purple, obtained from coal-tar, by W. 

 H. Perkin, 1858, 58. 



Dykes, trap, in Arran, Prof. Phillips on, 

 1855, 94. 



Dynactinometer, Claude t's, for comparing 

 the power of object-glasses, and for mea- 

 suring the intensity of the photogenic 

 Ught, 1850, 12. 



Dynamic electricity and the other physical 

 forces, researches on the correlation of, 

 by L. Soret, 1857, 16. 



equivalent of current electricity, W. 



Petrieonthe, 1850, 185. 



Dynamical theory of gases, Prof. J. C. Max- 

 well on the, 1859, 9. 



Dynamics, application to, of a general ma- 

 thematical method previously applied to 

 optics, 1834, 513. 



Dynamometer, friction break, Prof. J.Thom- 

 son on the, 1855, 209. 



, marine, for ascertaining the force of 



the waves, T. Stevenson on the, 1850, 

 189. 



Ear, human. Dr. Sym on the mechanical 

 functions of the, 1840, 154. 



, human, on the functions of the, by 



Prof. H. Carlile, 1857, 116. 



Ear-trumpet, improved, Dr. 0. J. B. Wil- 

 liams on an, 1836, 36. 



Earth and the atmosphere, on the general 



and gradual desiccation of the, by J. S. 



Wilson, 1858, 155. 



Earth, L. Foucaiilt's experiments on the 

 movement of the, by means of the gyro- 

 scope, 1854, 56. 



, on an orbital motion of the magnetic 



pole round the north pole of the, by Rev. 

 H. M. Grover, 1849, 8. 



, on the central heat and density of 



the, and the causes of volcanic pheno- 

 mena, by Dr. S. Macadam, 1850, 88. 



, on the distribution of heat in the 



interior of the, by Dr. Siljestrom, 1858, 



, on the conductibility of the, by Prof. 



Matteucci, 1850, 56. 



, on the constitution of the, by Rev. J. 



Dingle, 1859, 102. 



, Prof. Hennessy on the connexion be- 

 tween geological theories and the theory 

 of the figure of the, 1852, 21. 



, on the configuration of the surface of 



the, by Rev. J. Dingle, 1858, 1 50. 



, on the physical structure of the, by 



Prof. Hennessy, 1856, 26. 



, on the structure and magnetic phe- 

 nomena of the, by J. Drummond, 1857, 

 22. 



, on the temperature of the, 1837, 



37- 



, Prof. Hodgkinson on the temperature 



of the, in the deep mines near Man- 

 chester, 1840, 17. 



, Prof. J. D. Forbes on the temperature 



of the, at Trevandrum, 1847, 40. 



, R. Rigg's experimental inquiry into a 



peculiar property of the, 1837, 50. 



, Sir W. S. Harris on the method of 



employing vibrating magnets in the in- 

 vestigation of the magnetic intensity of 

 the, 1831-^2, 560. 



, W. Hopkins on the minimum thick- 

 ness of the crust of the, 1839, 26. 



, W. Hopkins on the refrigeration of 



the, 1837, 91. 



Earth's antiquity. Sir C. Lyell on the, 1846, 

 119. 



crust, Rev. J. Dingle on the forma- 

 tion of the, 1860, 77. 



magnetic force. Rev. Dr. Lloyd on the 



regular variations of the direction and 

 intensity of the, 1843, 12. 



rotation, D. Vaughan on its effects on 



atmospheric movements, 1859, 41. 



rotation. Rev. Prof. Powell on M. 



G-uyot's experiment on the, 1851, 23. 



internal structure, Prof. Hennessy on 



studying the, from phenomena observed 

 at its surface, 1860, 35. 



structure, S. M. Saxby on the connexion 



between magnetic variation with certain 

 peculiarities of the, 1845, 16. 



Siirface, on the direction of gravity at 



the, by Prof. Hennessy, 1857, 24. 



— — surface, on electric currents in the, by 

 A. H. Hamilton, 1857, 48. 



