Gravel of Patagonia, 86, 183. 

 Greenstone, fragments of, 274. 

 Gryllus migratorius, 349. 

 Guanaco, habits of, 179. 



, fossil allied genus, 187. 



Guantajaya, mines of, 384. 



Guardia del Monte, 130. 



Guasco, 367. 



Guasos of Chile, 275. 



Guava, imported into Tahiti, 426. 



Guinea-fowl, 14, 520. 



Gunnera scabra, 297. 



Gypsum, great beds of, 339. 



in salt-lake, 77. 



in Patagonian tertiary-beds, 



185. 



at Iquique with salt, 384. 



at Lima with shells, 390. 



Hachette, M., on lightning-tubes, 71. 

 Hailstorm, 128. 



Hall, Capt. Basil, on terraces of 



Coquimbo, 363. 

 Hare, Varying, 56. 

 Head, Capt., on thistle-beds, 132, 



136. 



Height of snow-line on Cordillera, 

 261. 



Henslow, Prof., on potatoes, 303. 



on plants of Keeling Island, 



479- 



Hermit crabs, 482. 

 Hill, emitting a noise, 382. 

 Himantopus, 126. 

 Hogoleu barrier-reef, 495. 

 Holes made by_ a bird, 107. 

 Holman on drifted seeds, 479. 

 Holuthurise feeding on coral, 490. 

 Hooker. Sir J., on the Cardoon, 132. 



, Dr. J. D., on the Kelp, 255. 



, Dr. J. D., on Gaiapageian 



plants, 415, 419. 

 Horn, Cape, 226. 



Horner, Mr., on a calcareous de- 

 posit, 20. 



Horse, powers of swimming of, 136. 



: , wild at the Falkland Islands, 



206. 



■ fossil, 94, 142. 

 Horsefly, 184. 



Horsemanship of the Gauchos, 165, 

 210. 



Horses difficult to drive, 123. 



drop excrement on paths, 131. 



killed by great droughts, 148. 



, multiplication of, 248. 



broken in, 165. 



Hot springs of Cauquenes, 280. 



Huacas, 389, 391. 



Humboldt on burnished rocks, 23. 



on the atmosphere in tropics, 



42. 



— ' — on frozen soil, 100. 

 — - — on hybernation, 111. 



on potatoes, 303. 



on earthquakes and rain, 373. 



s- — on miasma, 387, 460. 



>EX 541 



Humming-birds of Rio de Janeiro, 

 42. 



of Chile, 291. 



Hybernation of animals, 111. 

 Hydrochaerus capybara, 60. 

 Hydrophobia, 374. 

 Hyla, 39. 



Hymen ophallus, 43. 



Ibis melanops, 179. 



Ice prismatic structure of, 344. 



Icebergs, 201, 240, 263-268. 



Incas Bridge, 355, 377. 



Incrustations on coast rocks, 19, 23. 



Indian fossil remains, 392. 



Indians, attacks of, 75, 87. 



, Patagonians, 248. 



, Araucarians, 317. 



— — ■ of the Pampas, 114. 



of Valdivia, 317. 



, perforated stones used by, 284. 



powers of tracking, 347. 



, grave of, 183, 201. 



, ruins of houses of, in Cordil- 

 lera, 377, 389. 



, antiquities of, in La Plata, 56, 



"7. 



decrease m numbers, 116. 



Infection, 459. 



Infusoria in dust of the Atlantic, 15. 



• in the sea, 26, 176. 



■ in Pampas, 94, 142. 



in Patagonia, 185. 



in white paint, 236. 



■ in coral mud, 490. 



at Ascension, 521. 



Insects, first colonists of St. Paul's 



rocks, 20. 



• blown out to sea, 173. 



of Patagonia, 184, 346. 



of Tierra del Fuego, 254. 



of Galapagos, 403, 415, 416. 



> of Keeling Island, 431. 



of St. Helena, 516. 



Instincts of birds, 107, 422. 

 Iodine with salt at Iquique, 385. 

 Iquique, 383. 



Iron, oxide of, on rocks, 23. 

 Islands, oceanic, volcanic, 19. 



, Antarctic, 264. 



, floating, 282. 



, low, 425, 492. 



Jackson, Col., on frozen snow, 344. 

 Jaguar, habits of, 147. 

 Jajuel, mines of, 276. 

 James Island, Galapagos Archipel- 

 ago, 398. 

 Juan Fernandez, volcano of, 329. 

 , flora of, 416. 



Kater's Peak, 227. 

 Kauri pine, 451. 

 Keeling Island, 477. 



, birds of, 480. 



, entomology of, 488. 



, flora of, 479. 



