INDEX TO AUTHORITIES CITED. 



Academy of Science of St. Petersburg, 203. Academy of Science 



of Vienna, 199, 299. 

 Baines, 69. Balfour, i. Barnard, 129. Barrington, 128. Becqnerel, 110, 212. 



Belgrand, 294. Bell, 137. Berghans, 176, 180, lU. Blanqui, 120, 148. 



Bloget, 301. Blore, 52. Boussinganlt, ll3, 148, 159. Brandis, 256. 



Breton, 248. Brown, 142. Bryand, 150. Burnet, 129. 

 Cantegril, 174. Cezanne, 21, 59, 65, 68, 94, 147, 157, 162, 221, 242, 274, 



293, 303, 305. Chapman, 26. Chouseul-Graffier, 213. Clav6, 216, 



Chavery, 215. Conte-Grandchamps, 214. Costa de Bastelica, 244, 251. 



Cotle, 96. Coultas, 160. 

 D'Arboise de Jubainville, 214. Dallinger, 18. D'Hericourt, 223, 



Draper, 100, 111, 160. Drysdale, 18. Duponchel, 232. Dutrochet, 6. 

 Bbermayer, 204. Emerson, 23. Bmsman, 117. Espy, 304. 

 Faber, 236. Fraas, 109. Fries, 108. Prisi, 231. 

 Gosse, 25. Graham, 35, 145. Gras, 248. Gray, 6, 9, 59. Grebanau, 177, 184. 



Gnglielmini, 231. 

 Hagen, 177, 178, 183. Hales, 15. Hayes, 155. Henry, 98, 115, 262. Her- 



schel, 32, 34, 49, 158, 282, 303. Home, 56, 145. Barker, 108, 112, 128. 



Hough, 100, 148. Humboldt, 34. Hummel, 169. Huxley, 18. 

 Irving, 154. Jamieson, 300, Janisch, 118. Job, 10. Johnstone, 37, 55. 



Johnstrus, 225. 

 Kieser, 4. 

 Labuissiere, 295. Laurent, 111. Lemoine, 221. Lenneps, 32. Leslie, 



41, 43. Livingstone, 28. Lombardini, 233. 

 Maas, 177, 179. Max Graham, 113. Maclaren, 159. Macvicar, 71. Marschand, 



167, 217, 249. Mardigny, 232. Marny, 264. Marsh, 21, 22, 45, 46, 57, 



64, 74, 88, 90, 106, 115, 125, 144, 148, 161, 167, 171, 216, 223, 226, 283. 



Mathieu, 62, 64, 161. Maury, 156. Meguscher, 33. Meldrum, 134. 



Mitchell, 43. Moffat, 104, 173. Mohl, 19. 

 Orlebar, 55. 



Perrot, 192. Pfaff, 2l, 25. Piper, 169. Pliyfair, 124. 

 Renou, 302. Sogers, 126. Eaulin, 95, 97, 279. 

 St. John, 127. Saussure, 34. Scheubler, 92. Schleiden, 21, 25. Scoresby, 



153. Shott, 100. Siemni, 169. Steinmitz, 152. Surell, 174, 230, 237. 



Symons, 300. 

 Tennant, 30. Thomas, 164. Thomson, 272. Thornton, 124. Thurmann, 67. 

 Vaillant, 21, 61, 75, 212. Valles, 252. Van Keenan, 172. Vampell, 90, 291. 

 Wells, 32. Wex, 175. Williams, 23. Wiseman, 204. Wisner, 175. 



