444 



INDEX. 



Baer, Yon, embryonic similarity of 



the Vertebrata, 387. 

 Baker, Sir S.,on the giraffe, 178. 

 Balancement of growth, 117. 

 Baleen, 182. 

 Barberry, flowers of, 77. 

 Barrande, M., on Silurian colonies, 



291. 

 , on the succession of species, 



299. 

 , on parallelism of palaeozoic 



formations, 301. 

 , on affinities of ancient species, 



302. 

 Barriers, importance of, 317. 

 Bates, Mr., on mimetic butterflies, 



375,376. 

 Batrachians on islands, 350. 

 Bats, how structure acquired, 140. 



, distribution of, 351. 



Bear, catching water-insects, 141. 

 Beauty, how acquired, 159, 414. 

 Bee, sting of, 163. 



, queen, killing rivals, 164. 



, Australian, extermination of, 



59. 

 Bees fertilising flowers, 57. 

 , hive, not sucking the red clover, 



75. 



, Ligurian, 75. 



, hive, cell-making instinct, 220. 



, variation in habits, 208. 



, parasitic, 216. 



, humble, cells of, 220. 



Beetles, wingless, in Madeira, 109. 



with deficient tarsi, 109. 



Bentham, Mr., on British plants, 37. 



, on classification, 369. 



Berkeley, Mr., on seeds in salt water, 



324. 

 Bermuda, birds of, 348. 

 Birds acquiring fear, 208. 



, beauty of, 161. 



annually cross the Atlantic, 329. 



, colour of, on continents, 107. 



, footsteps, and remains of, in 



secondary rocks, 284. 



, fossil, in caves of Brazil, 310. 



, of Madeira, Bermuda, and Ga- 

 lapagos, 348, 349. 



, song of males, 70. 



transporting seeds, 328. 



, waders, 345. 



- , wingless, 108, 140, 



Bizcacha, 318. 



, affinities of, 379. 



Bladder for swimming, in fish, 147. 

 Blindness of cave animals, 110. 

 Blyth, Mr., on distinctness of Indian 



cattle, 14. 



, on striped hemionus, 128. 



, on crossed geese, 240. 



Borrow, Mr., on the Spanish pointer, 



26. 

 Bory St. Vincent, on Batrachians, 350. 

 Bosquet, M., on fossil Chthamalus, 



284. 

 Boulders, erratic, on the Azores, 328. 

 Branchiae, 148, 149. 



of crustaceans, 152. 



Braun, Prof., on the seeds of Fuma- 



riaceae, 174. 

 Brent, Mr., on house-tumblers, 210. 

 Britain, mammais of, 352. 

 Broca, Prof., on Natural Selection, 



170. 

 Bronn, Prof., on duration of specific 



forms, 275. 



, various objections by, 170. 



Brown, Robert, on classification, 366. 

 , Se'quard, on inherited mutila- 

 tions, 108. 

 Busk, Mr., on the Polyzoa, 193. 

 Butterflies, mimetic, 375, 376. 

 Buzareingues, on sterility of varieties, 



258. 



Cabbage, varieties of, crossed, 78. 



Calceolaria, 239. 



Canary-birds, sterility of hybrids, 



240. 

 Cape de Verde islands, productions of, 



354. 



, plants of, on mountains, 337. 



Cape of Good Hope, plants of, 101, 



347. . 

 Carpenter, Dr., on foraminifera, 308. 

 Carthamus, 173. 

 Catasetum, 155, 372. 

 Cats, with blue eyes, deaf, ?. 



, variation in habits of, 209. 



curling tail when going to 



spring, 162. 

 Cattle destrcving fir-trees, 56. 

 destroyed by flies in Paraguay 



56. 



