INDEX. 585 



Hyaena venatica, remarks on the habits of, 445. Hefeld, section of the country near, 286. 



Hyracotherium, Mr. Richardson, observations on the Ilfracombe, section of cleavage in curved strata 



locality of the, 211. near, 481. 

 on the Ilijah, notice of travertine and thermal springs at, 20. 



discovery of the, 213. Infusoria, notice of Ehrenberg's discovery of, in 

 Mr. Owen's description of the speci- silex of the carboniferous epoch, 310. 



men, 203. Inverted strata, notices of, in Westphalia, 240. 

 account of the portions preserved, •■ near Bensberg, 241. 



204. in Belgium, 268. 



comparison of, with the Chaeropota- in the Eifel district, 277. 



mus and hog tribe, 204. north of the Brocken, 286. 



north of Neustadt, 292. 



j_ Insecta, remarks on the occurrence of, in Palaeozoic 



rocks, 330. 



Ice, remarks on the transport of fragments of rock Interstratified igneous rocks, account of, in South 

 by, in the St. Lawrence, 140. Devon, 470, 473. 



— possible effects of drifted ice Intrusive igneous rocks, account of, in South Devon, 



on the temperature of the St. Lawrence and its 471^ 474,, 



testacea, 140. Iron ores, abundance of, in Devonian rocks, striking 



remarks by Mr. Darwin on the agency of, in consequence of intrusive rocks, 239. 



transporting boulders, 429. Isle of Wight, description of remains of Chaeropota- 

 Ichthyosaurus, Mr. Owen, description of some of the mus, &c. from the Eocene formation of the, 41. 



softpartswiththeintegumentof the hind fin, 199. on the London and plastic clays of 



inferences deduced from its charac- the, 169. 



ters, 201. 

 Igneous rocks in Western Asia Minor, enumeration 



°*' 2* Jaeger, Prof., remarks on his genus Mastodonsaurus, 

 description of, 22 et seq. 5^3 ^^ ^^^_ 



near Lisbon, description of, 124. j^j^^^^ observations on the, of the new red sand- 



b^^^^*' 1^*- stone of Devonshire, 455. 



granitic rocks, 1 27. ^„,^I limestones, 



463. 



account of four classes of, in the 



Hartz, 285. general remarks on, in South Devon, 480. 



description of, in the south-east of observations on the, which traverse quartz 



Devonshire, 470. rock and schists in the vicinity of Cherbourg, 566. 

 , interstratified among 



the older deposits, 470. jj^ 

 intruded among the 



older deposits, 471. Kaplan Alan, description of the extinct volcano 



— ■ interstratified among of, 32. 



the carbonaceous deposits, 473. Karabagh, notice of the island of, 9. 



I' intruded among the Kara-bornou, notice of the limestone of the penin- 



carbonaceous deposits, 474. sula of, 12. 

 remarks on the eflPects produced by, Kara-dewit, description of the extinct craters, or 



among the sedimentary strata, 479. Kara-dewits of the Catacecaumene, 31 et seq. 



Igneous and volcanic rocks in Asia Minor, more Kelloway's rock, description of, on the Yorkshire 

 prevalent in the north than the south, 57. coast, 146, 148, 150. 



