DOWNING. 



INDFX. 



FLOWER. 



327 



1 )owning, IMr., on fruit-trees in Ame- 

 rica, i. 101. 



Dragon flies, intestines of, i. 229. 



Drift-timber, ii. 145. 



Drivir-ant, i. 361. 



Drones killed by other bees, i. 256. 



Duck, domestic, wings of, reduced, 

 i. 12. 



, beak of, i. 285. 



, lo<igi r-hea<led, i. 218. 



Duckweed, ii. 173. 



Dugong, allinities of, ii. 206. 



Dung-beetles with deficient tarsi, 

 i. 168. 



Dytiscus, ii. 174. 



E. 



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

 pelago, ii. 18.5. 

 Earri, drooping, in domestic animals, 



i. 13. 



, rudimentary, ii. 261. 



Eurtli, seeds in roots of trees, ii. 145. 



charged with seeds, ii. 148. 



Echinodermiita, their pedicellarise, 



i. 297. 

 Eciton, i. .S59. 



Economy of organisation, i. 182. 

 Edentata, tetth and hair, i. 179. 



, fossil species of, ii. 288. 



Edwards, Milne, on physiological 



division of labour, i. 139. 

 , on gradations of structure, 



i. 244. 

 , on embryological characters, 



ii. 210. 

 Eg2s, young birds escaping from, 



i:i06. 

 Egypt, productions of, laot modified. 



i. 263. 

 Electric organs, i. 234. 

 Elephant, rate of increase, i. 80. 



, of Glacial period, i. 176. 



Embryology, ii. 239. 

 Eozoon Canadensc, ii. 84. 

 Ejnlepsy inherited, i. 167. 

 Existence, struggle for, i. 75. 



• , condition of, i. 261. 



Extinction, as bearing on natural 



selection, i. 150. 

 ■ of domestic varieties, i. 145. 



, ii. 94. 



Eye, structure of, i. 225. 



Eve, correction for aberration, i. 



'255. 

 Eyes, reduced in moles, i. 170. 



F. 



Fabre, M., on hymenoptera fight- 

 ing, i. 108. 



■ , on parasitic spliex, i. 336. 



, on Sitaris, ii. 252. 



Falcon r. Dr., on nnturalisation oi 

 plants in India, i. 80. 



on elephants and mastodons, 



ii. 113. 



and Cautley, on mammals of 



sub-IIimiflayan beds, ii. 122. 



Falkland Islands, wolf of, ii. 183. 



Faults, ii. 54. 



Faunas, marine, ii. 131. 



Fear, instinctive, in birds, i. 329. 



Feet of birds, young molluscs ad- 

 hering to, ii. 174. 



Fei tilisation variously eflected, L 

 241, 252. 



Fertility of hybrids, ii. 6. 



, from slight changes in con- 

 ditions, ii. 28. 



of crossed varieties, ii. 34. 



Fir-trees destroyed by cattle, i. 88. 



, pollen of, i. 257. 



Fish, fiying, i. 218. 

 • , teleoste;in, sudden appear- 

 ance of, ii. 81. 



, eating seeds, ii. 146, 175. 



, fresh-wuter, distribution of, 



ii. 172. 

 Fishes, ganoid, now confined to fresh 



water, i. 130. 



, eleetric organs of, i. 234. 



, ganoid, living in fresh water, 



ii. 99. 

 , of southern hemisphere, ii. 



164. 

 Flat-fish, their structure, i. 290. 

 Flight, powers of, how acquired, 



i. 218. 

 Flint-tools, proving antiquity of 



man, i. 21. 

 Flower, Prof, on the Lamyx, i. 297. 



, on Halitherium, ii. 108. 



, on the resemblance between 



the jaws of the dog and Thylar 



cinus, ii. 220. 



