SECTIONS.-— INDEX OP iSUBJECTS. 



m^ 



Dr. Tilt on ascertaining the number and 

 condition of the, 1851, 109. 

 Iguanodon, Dr, Mantell on the upper jaw 



of the, 1850, 125. 



, Prof. Owen on the teeth of the, 1838, 



144- 

 Ileus, Sir D. J. H. Dickson on a case of, 



1839, 95. 

 Illuminating opake objects, C. Brooke on a 



mode of, under the highest powers of the 



microscope, 1851, 7. 

 Images, electrical, Prof. W. Thomson on, 



1847, 6. 

 produced bj lenses and mirrors of 



different sizes, Sir D. Brewster on the 



form of, 1852, 3. 

 Imaginary quantities, Sir W. R. Hamilton 



on conjugate functions, or algebraic cou- 

 ples, as illustrating the doctrine of, 1834, 



519. 

 Impact and collision. Prof. E. Hodgkinson 



on, 1835, 107. 

 on beams. Prof. E. Hodgkinson on the 



effect of, 1833,421. 

 Impurities, on the use of the prism in de- 

 tecting, by Dr. J. H. Gladstone, 1857, 



48. 

 Incrustation from boilers of steam-engines, 



Dr. J. Davy qu the, 1850, 51. 

 Incrustations of blast furnaces. Prof. F. C. 



Calvert on the, 1856, 50. 

 Incubation, on the changes and chemical 



composition of eggs during, 1848, 89. 

 India-rubber, cause of the black colour in, 



1854, 96. 

 , artificial, 1855, 103, 



and gutta percha, as insulators for 



subaqueous telegraphic wires, S. W. Silver 

 on, 1860, 212. 



Indian seas. Dr. Buist on the currents of 

 the, 1853, 12. 



tribes of Texas, W. Bollaert on the, 



1846, 116. 



Indians, Bethuck, of Newfoundland, Dr. 

 Latham on the language of the, 1846, 1 1 5. 



, Comanche, of Texas, W. Bollaert on 



the, 1846, 116; Dr. Latham on a voca- 

 bulary of the, 117. 



— — •, Mr. Sullivan on the tribes of, inhabit- 

 ing the country explored by the British 

 North American expedition in the years 

 1857-59, 1860, 173. 



Indicator, steam-engine, J. Hopkinson on 

 the, 1853, 118. 



, steam-engine, Rous's, 1843, 10 1. 



Indices, refractive. Rev. Prof. Powell on the 

 theoretical computation of, 1841, 24. 



, refractive, of several substances, Rev. 



Prof. Powell on the, 1850, 14. 



Indigestion, alkaline, Dr. R. D. Thomson on, 

 1839, 107. 



Indigo, on the supposed formation of vale- 

 rianic acid from, 1844, 33. 



, real, in the indigos of commerce. Dr. 



Dana on determining the quantity of, 

 1841, 49. 



Indo-European languages, Rev. Dr. E. 



Hincks on the, 1860, 156. 

 Indo-Gfermanic theory of races, J. Crawfurd 



on the, 1860, 154. 

 Induction and conduction. Sir Gt. G. Haugh* 



ton on the nature of, 1847, 27. 

 in long submarine lines of telegraph, 



Prof. W.Thomson on the effects of, 1857, 



21. 



coils, Whitehouse's, 1857, 21. 



coil, improved, W. Ladd on an, 1858, 



26. 

 apparatus, powerful, devised by E. S. 



Ritchie, Prof. W. B. Rogers on the, 1857, 



15- 



machine, electro-dynamic, Rev. Profi 



Callan on the, 1857, 11. 



, electro-magnetic. Prof. W. Thomson 



on the theory of, 1848, 9. 



Industrial classes, on the investments of the, 

 by Dr. J. Bateman, 1858, 168. 



Infinite series, diverging, Prof. Foung on, 

 1844, 1. 



series, Mr. Rawson on the summation 



of, 1844, 2. 



Inflammation, Dr. Alison on, 1834, 674. 



, gouty, Dr. A. B. Garrod on, 1869, 



165. 



, local. Dr. Perry on, 1840, 159. 



Influenza of 1833, G-. H. Fielding on the 

 peculiar atmospherical phenomena during 

 the prevalence of the, 1833, 461. 



, epidemic, of 1837, Dr. Black on the, 



1837, 115. 



Infusoria, Dr. Lankester on deposits in 

 springs, rivers, and lakes, from the exist- 

 ence of, 1841, 72. 



, on the occurrence of peculiar organs 



resembling thread-cells in the, by Prof. 

 Allman, 1854, 105. 



Infusorial animalcules, J. Samuelson on the 

 development of, 1856, 98. 



Insane, hospitals in Bengal for the, on the 

 statistics of, 1844, 89. 



Insanity, on the liability to, at different ages, 

 by Dr. Thurnam, 1845, 87. 



• , on the relative liability of the two 



sexes to, by Dr. Thurnam, 1844, 92. 



Insects, Rev. W. Hope on the modern classi- 

 fication of, 1838, 113. 



, social, on the development of sex in, 



by Rev. W. Leitch, 1855, 11 1. 



, on the power by which they are enabled 



to adhere to smooth perpendicular sur- 

 faces, by Dr. T. Inman, 1854, 109. 



, W. Herapath on the lithiate of am- 

 monia as a secretion of, 1836, 70. 



, Persian, J. Wilson on some, 1840, 



136. 



, J. O. Westwood on certain blind spe- 

 cies of, 1847, 81. 



. , blind, of Mitchelstown Caves, Dr.E.P. 



Wright on the, 1857, 108. 



which attack books, &c.. Sir T. Phillips 



on a method of destroying, 1837, 99. 



• for the cabinet, Q. B. Buckton on the 



s 2 



