INDEX 



543 



Bogs, inherited civilisation of, 268. 

 — — , fertility of breeds together, 



305- 



of crosses, 322. 



— — , proportions of body in differ- 

 ent breeds, when young, 484. 



Domestication, variation under, 25. 



Double flowers, 292. 



Downing, Mr., on fruit-trees in 

 America, 98. 



Dragon-flies, intestines of, 194. 



Drift-timber, 407. 



Driver ant, 294. 



Drones killed by other bees, 214. 



Duck, domestic, wings of, reduced,29. 



— ^ — , beak of, 237. 



, logger-headed, 186. 



Duckweed, 429. 



Dugong, affinities of, 45 3-. 



Dung-beetles with deficient tarsi, 

 148. 



Dytiscus, 429. 



E 



Earl, Mr. W., on the Malay Archi- 

 pelago, 437. 

 Ears, drooping, in domestic animals, 



29- 



, rudimentary, 494. 



Earth, seeds in roots of trees, 407. 



• charged with seeds, 409. 



Echinodermata, their pedicellari;e, 



246. 

 Eciton, 292. 



Economy of organisation, 159. 

 Edentata, teeth and hair, 156. 



• , fossil species of, 515. _ 



Edwards, Milne, on physiological 



division of labour, 126. 

 • , on gradations of structure, 



20;. 



on embryological characters. 



456. 

 Eggs, young birds escaping from, 



100. 

 Egypt, productions of, not modified, 



220. 

 Electric organs, 198. 

 Elephant, rate of increase, 79. 



, of Glacial period, 154. 



Embryology, 478. 

 EoEoon Canadense, 360. 

 Existence, struggle for, 76. 



, condition of, 218. 



Extinction, as bearing on natural 



selection, 134. 

 - — — of domestic varieties, 130. 



. 368. 



Eye, structure of, 191. 



, correction for aberration, 216. 



Eyes, reduced in moles, 149. 



Fabre, M., on hymenoptera fighting, 

 102. 



, on parasitic sphcx, 275. 

 t , on Sitaris, 487, 488. 



Falconer, Dr., on naturalisation of 

 plants in India, 80. 



on e'ephants and mastodons, 



383. 



and Cautley, on mammals of 



sub-Himalayan beds, 389. 



Falkland Islands, wolf of, 436. 



Faults, 338. 



Faunas, marine, 397. 



Fear, instinctive, in birds, 269. 



Feet of birds, young molluscs ad- 

 hering to, 429. 



Fertilisation variously effected, 203, 

 211. 



Fertility of hybrids, 302. 



, from slight changes in con- 

 ditions, 318. 



of crossed varieties, 322. 



Fir-trees destroyed by cattle, 86. 



, pollen of, 215. 



Fish, flying, 187. 



, teleostean, sudden appearance 



°^' 357: 



, eating seeds, 408, 430. 



-, fresh-water, distribution of, 



427, 428. 

 Fishes, ganoid, now confined to 



fresh water, 118. 



, electric organs of, 198. 



, ganoid, living in fresh water, 



372. 



, of southern hemisphere, 421. 



Flat-fish, their structure, 240. 

 Flight, powers of, how acquired, 



186, 187. 

 Flint-tools, proving antiquity of 



man, 35. 

 Flower, Prof., on the larynx, 246. 



, on Halitherium, 378. 



, on the resemblance between 



the jaws of the dog and Thylaci- 



nus, 464. 



, on the homology of the feet 



of certain marsupials, 473. 

 Flowers, structure of, in relation to 



crossing, 106. 

 , of compositae and umbelliferse, 



157. 225- 



, beauty of, 211. 



doub'e, 292. 



Flysch formation, destitute of or- 

 ganic remains, 341. 



Forbes, Mr. D., on glacial action in 

 the Andes, 418. 



, E., on colours of shells, 146. 



, on abiupt range of shells in 



depth, 181. 

 -, on poorness of palseontological 



collections, 340. 

 , on continuous succession of 



genera, 367. 

 , on continental extensions, 404, 



405- 



-, on distribution during Glacial 

 period, 412. 

 -, on parallelism in time and 



space, 448. 



