532 



INDEX. 



Audubon, on variation in birds' 



nests, 346. 



, on beron eating seeds, 409. 



Australia, animals of, 106. 



, dogs of, 349. 



, extinct animals of, 367. 



, European plants in, 398, 



, glaciers of, 395. 



Aizara, on flies destroying cattle, 



67. 

 Azores, flora of, 388. 



Babington, Mr., on British plants, 



44. 

 Baer, Von, standard of Higbness, 



116. 

 , comparison of bee and fisb, 



864. 

 , embryonic similarity of tbe 



Vertebrata, 458. 

 Baker, Sir S., on the giraffe, 311. 

 Balancement of growth, 139. 

 Baleen, 316. 



Barberry, flowers of, 91. 

 Barrande, M., on Silurian colo 



nies, 344. 

 , on the succession of species, 



354. 

 , on parallelism of palaeozoic 



formations, 356. 

 , on aflfinities of ancient 



species, 357. 

 Barriers, importance of, 373. 

 Bates, Mr., on mimetic butterflies, 



443, 444. 

 Batrachians on islands, 418. 

 Bats, how structure acquired, 166. 



, distribution of, 415. 



Bear, catching water-insects, 168. 

 Beauty, how acquired, 189, 488. 

 Bee, sting of, 194. 



, queen, liilling rivals, 194. 



, Australian, extermination 



of, 70. 

 Bees, fertilizing flowers, 68. 

 , hive, not sucking the red 



clover, 88. 

 , hive, cell-making instinct, 



359. 



, Ligurian, 88. 



, variation in habits, 346, 



Bees, parasitic, 355. 



, humble, cells of, 360. 



Beetles, wingless, in Madeira, 180. 



with deficient tarsi, 139. 



Bentham, Mr., on British plants, 



44. 



, on classification, 485. 



Berkeley, Mr., on seeds in salt 



water, 383. 

 Bermuda, birds of, 413. 

 Birds acquiring fear, 346. 



, beauty of, 191. 



annually cross the Atlantic, 



889. 



, color of, on continents, 137. 



, footsteps, and remains of, 



in secondary rocks, 335. 

 , fossil, in caves of Brazil, 



367. 

 , of Madeira, Burmuda and 



Galapagos, 413, 413. 



, song of males, 83. 



, transporting seeds, 387. 



, waders, 408. 



, wingless, 138, 166. 



Bizcacha, 876. 



, affinities of, 447. 



Bladder for swimming, in fish, 



175. 

 Blindness of cave animals, 130. 

 Blyth, Mr., on distinctness of 



Indian cattle, 16. 



, on striped hemionus, 138. 



, on crossed geese, 384. 



Borrow, Mr., on the Spanish 



pointer, 30. 

 Bory St. Vincent, on Batrachians, 



413. 

 Bosquet, M., on fossil Chtha- 



malus, 336. 

 Bowlders, erratic, on the Azores, 



OQQ 



Branchiae, 176, 177. 



, of crustaceans, 181. 



, Braun, Prof., on the seeds 



of Fumariaceae, 306. 



Brent, Mr., on house-tumblers, 

 348. 



Britain, mammals of, 415. 



Broca, Prof., on Natural Selec- 

 tion, 301. 



