496 



INDEX. 



HOOKER. 



Hooker, Dr., on acclimatisation of 

 Himalayan trees, 140. 



, on flowers of umbellifera?, 145. 



. , on glaciers of Himalaya, 373. 



, on alga; of New Zealand, 376. 



, on vegetation at the base of the 



Himalaya, 378. 



, on plants of Tierra del Fuego, 



374, 378. 



, on Australian plants, 375, 399. 



, on relations of flora of South 



America, 379. 



, on flora of the Antarctic lands, 



381, 399. 



, on the plants of the Galapagos, 



391, 398. 



Hooks on bamboos, 197. 



to seeds on islands, 392. 



Horner, Mr., on the antiquity of Egyp- 

 tians, 18. 



Horns, rudimentary, 454. 



Horse, fossil, in La Plata, 318. 



Horses destroyed by flies in La Plata, 

 72. 



, striped, 1G3. 



, proportions of, when young, 445. 



Horticulturists, selection applied by, 

 32. 



Huber on cells of bees, 230. 



, P., on reason blended with in- 

 stinct, 208. 



, on habitual nature of instincts, 



208.- 



, on slave-making ants, 219. 



, on Melipona domestica, 225. 



Humble-bees, cells of, 225. 



Hunter, J., on secondary sexual cha- 

 racters, 150. 



Hutton, Captain, on crossed geese, 253. 



Huxley, Prof., on structure of herma- 

 phrodites, 101. 



, on embryological succession, 338. 



, on homologous organs, 438. 



, on the development of aphis, 442. 



Hybrids and mongrels compared, 272. 



Hybridism, 245. 



Hydra, structure of, 190. 



Ibla, 148. 



Icebergs transporting seeds, 363. 



Increase, rate of, 63. 



Individuals, numbers favourable to se- 

 lection, 102. 



, many, whether simultaneously 



created, 356. 



Inheritance, laws of, 12. 



■ at corresponding ages, 14, 86. 



Insects, colour of, fitted for habitations, 

 84. 



, sea-side, colours of, 132. 



, blind, in caves, 138. 



, luminous, 193. 



, neuter, 236. 



Instinct, 207. 



Instincts, domestic, 213. 



Intercrossing, advantages of, 96. 



Islands, oceanic, 388. 



Isolation favourable to selection, 104. 



Japan, productions of, 372. 

 Java, plants of, 375. 

 Jones, Mr. J. M., on the birds of Ber- 

 muda, 391. 

 Jussieu on classification, 417. 



Kentucky, caves of, 137. 



Kerguelen-land, flora of, 381, 399. 



Kidney-bean, acclimatisation of, 142. 



Kidneys of birds, 144. 



Kirby on tarsi deficient in beetles, 135. 



Knight, Andrew, on cause of variation, 

 7. 



Kolreuter on the barberry, 98. 



on sterility of hybrids, 247. 



on reciprocal crosses, 258. 



on crossed varieties of nicotiana, 



271. 



on crossing male and hermaphro- 

 dite flowers, 451. 



L. 



Lamarck on adaptive characters, 427. 

 Land-shells, distribution of, 397. 



of Madeira, naturalised, 402. 



Languages, classification of, 422. 

 Lapse, great, of time, 282. 

 Larvae, 440. 



