INDE,X. 105 



Hypoxylea^ structure and fructification of, vi. 222 

 Hysterical patient, effect of tlie injection of a solution of opium 

 into the veins of, xvii. 1 45 



Ice found at the bottom of rivers, the surface being unfrozen, ii. 

 205 ; V. 268; xiii. 228 



— experiments on producing, iv. 133. Observations on its opti- 

 cal structure, 155. Account of the Greenland or Polar ice, 

 247. Different names given to it, under various circumstances, 

 by seamen, 248. Effects of the ocean freezing, in a rough sea, 

 250; and in sheltered situations, ib. Fields of, how gene- 

 rated, 251. Their tremendous concussions, 253. Account of 

 ice-bcrgsj 255. On the situation of the Polar ice, and the 

 effects produced on it by a change in the seasons, 256. Obser- 

 vations on the properties, peculiar movements, and drifting of, 

 262. Effects of, on the sea and the atmosphere, 263. Alarming 

 increase of, in the glaciers, 282. Extensive devastations of, in 

 Greenland, 283 



— progress of floating masses of, from the north, v. 372 



— islands of, in the AVest Indies, vi. 371 



— on the evaporation of, ix. 423 



— caves (natural), account of, xvii. 396 



— of running water, observations on, xix. 364 

 Iceland, notice of volcanic eruptions in, xvi. 396 

 Icelandic literature, account of, vi. 381 



Idea and perception, proofs of the homogeneous nature of, iii. 6 

 Ignatius (St.) bean, on its analysis, vii. 379 

 Iguanodon, a fossil reptile, description of, xix. 304 

 Illumination of streets, remarks on, v. 177. By electricity, ix. 208 

 Immobility, a disease of horses, cause of, xvii. 145 

 Imperial Insurance Company, observations on the chemical evi- 

 dence given in the cause of Severn and Co. against, x. 316 

 Impressions (corporeal), influence of, in producing changes of 

 function in the living body, iv. 13. Influence of painful, 16. 



