INDEX 



Abomasum, 417 



Aboral surface, 236 



Absorption, 200 



Acephala, 175 



Acquired characters, inheritance of, 

 107 



Actinozoa, 260 



Adhesive papillae, 303 



Adrenal capsules, 403 



Aftershaft, 366 



AGASSIZ, ALEXANDER, on formation 

 of coral islands, 262 ; on habits of 

 basket-fish, 245 



AGASSIZ, MRS. E. C., on habits of 

 basket-fish, 245 



AGASSIZ, Louis, 447 



Age of Amphibians, 345, 346, 361 ; 

 of Coal Plants, 345, 346, 361 ; of 

 Fishes, 324 ; of Invertebrates, 295, 

 324; of Mammals, 428, 431; of 

 Man, 431, 433, 434 ; of Reptiles, 

 360, 362, 396, 410, 428 



Aggressive resemblance, 23 



Albatross, wandering, 376 



Albinism, 407 . 



Alder-blight, 34 



Alligators, 359 



Alluring coloration, 24 



Alternation of generations, 267 



Amblystoma, 340 



Amoeba, 280 



Amoebocytes, 207 



Arncebulae, 284 



Amphibians, age of, 345, 346, 361 ; 

 definition of, 339 ; geological de- 

 velopment of, 345 



Ampullae, 239, 273 



Analogy, 130 



Anatomy, comparative, 436 



ANDERSON, DR. J., on colors of 

 mantids, 24 



Annelida, 225 



Annulata, 225, 298 



Annulus, 135 



Ant-eater, spiny, 408 



Antelopes, 413, 416 ; pronghorn, 

 414 



Antennae, 2, 127 



Antennule, 127 



Antlers, 415 



Ants, 78; agricultural, 81; corn- 

 louse, 79; honey, 80 



Anura, 343 



Apes, 423 



Aphids, 33, 104 ; woolly, 34 



Appendix vermiformis, 403 



Arachnida, 122, 156 



Archaean Time, 293 



Archaeopteryx, 396 



Archenteron, 216 



ARISTOTLE, 437 



Armadillos, 411 



Artemia, 148 



Arthropoda, 156, 299 



Assimilation, 202 



Asteroidea, 251 



Asymmetry, 187 



Atoll, 262 



Atrial pore, 302 



Atrium, 301 



Aves, 374 



Axolotl, 341 



Baboon, Cape, 427 

 Back-swimmers, 31 

 BACON, FRANCIS, 438 

 BACON, ROGER, 438 

 BAER, KARL ERNST VON, 446 

 Barbs, 366 

 Barbules, 366 

 Barnacles, 150, 153 

 Basipodite, 130 

 Basket-fish, 244 

 BATESON, WILLIAM, 110 

 Bats, 422, 431 ; vampire, 423 

 Beadsnake, 355 

 Bear, 420, 434 

 Beaver, 418, 419 



Bees, guest, 76 ; honey, 72 ; leaf-cut- 

 ter, 78; solitary, 77 



453 



