INDEX. 



Aardvark, 587. 

 Abalone, 101. 

 Abdomen, 169. 

 Abraxas, 209. 

 Acadian owl, 526. 

 Acanthocephali, 62. 

 Accipitres, 505. 

 Acephals, 80. 

 Achatina, 99. 

 Achatinella, 100. 

 Acmsea, 101. 

 Acorn-barnacle, 133. 

 Acris, 366. 

 Acrosoma, 164. 

 Actinaria, 33. 

 Actinia, 33. 

 Actinoloba, 28. 

 Adder, 385. 

 Adjutants, 469. 

 JEga, 152. 

 ^Egeria, 277. 

 iEpiornis, 432. 

 African antelope, 646. 

 African elephant, 615. 

 African lion, 689. 

 Agalmopsis, 25. 

 Agapornis, 531. 

 Agate- shell, 99. 

 Ageronia, 286. 

 Agouti, 590. 

 Agricultural ant, 229, 



234. 

 Agrotis, 270. 

 Ahuatl, 262. 

 Ailanthus moth, 272, 



274, 275. 

 Aits, 454. 

 Albatross, 444. 

 Alcedo, 542. 

 Alces, 638. 

 Alcyonaria, 33. 

 Alcyonium, 34, 35. 

 Alewives, 317. 

 Alligator-turtle, 414. 

 Alligators, 418. 

 All-mouth, 353. 



Almiqui, 605. 

 Alpaca, 632. 

 Alpheus, 137. 

 Alternation of genera- 

 tions, 22, 24, 31, 55, 

 292. 

 Aluco, 525. 

 Amazon- ants, 230. 

 Ambergris, 655. 

 Amblyopsis, 325. 

 Amblystoma, 361. 

 American lion, 691. 

 American sable, 679. 

 Amherst pheasant, 494. 

 Ammonite, 112. 

 Amoeba, 5. 

 Ampelis, 559. 

 Amphibia, 358. 

 Amphioxus, 292. 

 Amphisbaena, 405. 

 Anableps, 325. 

 Anabrus, 180. 

 Anaconda, 374. 

 Anal fin, 304. 

 Anas, 452. 

 Anasa, 255. 

 Ancistrodon, 390. 

 Andrena, 237. 

 Anemone, 28. 

 Angler, 353. 

 Angle-worms, 65. 

 Anguilla, 309. 

 Anguillula, 59. 

 Ani, 537. 

 Animalcule, 5. 



bell, 8. 



wheel, 71. 

 Animal life, 1. 

 Annelids, 63. 

 Anolis, 398. 

 Anomia, 82. 

 Anophthalmus, 216. 

 Anortheura, 558. 

 Ant, agricultural, 229, 

 234. 



amazon, 230. 



Ant, cutting, 223. 



driver, 224. 



foraging, 225. 



harvesting, 235. 



honey, 233. 



parasol, 233. 



sauba, 221, 222. 



slave-making, 230. 



white, 186. 

 Ant-eater, banded, 582. 



great, 586. 



porcupine, 575. 



spiny, 575. ' 

 Antelope, 643. 



African, 646. 



prong-horn, 644. 



Senegal, 647. 

 Anthrenus, 212. 

 Antilocapra, 644. 

 Ant-lion, 192. 

 Antrostomus, 541. 

 Ants, 216, 221. 

 Apes, 702, 707. 

 Aphides, 249. 

 Aphids, 231. 

 Aphis, 249. 



Apple-tree borers, 198. 

 Apteria, 422. 

 Apus, 129. 

 Araneus, 149. 

 Arapaima, 319. 

 Arara, 532. 

 Archasopteryx, 425. 

 Archer- fish, 335. 

 Archibuteo, 516. 

 Arctic fox, 682. 

 Ardea, 466. 

 Arenaria, 479. 

 Arenicola, 69. 

 Argas, 166. 

 Argonauta, 114. 

 Argus, 493. 



pheasant, 492. 

 Argynnis, 284. 

 Argyroneta, 16:]. 

 Aristotle's lantern, 47. 



Armadillos, 583. 

 Army-worm, 270. 

 Aromochelys, 416. 

 Arrohopalus, 200. 

 Arthropods, 123. 

 Ascarids, 60. 

 Asiatic sable, 680. 

 Asp, 383, 385. 

 Aspidonectes, 411. 

 Assapan, 603. 

 Asterias butterfly, 280. 

 Asteroids, 42. 

 Astrsea, 31, 32. 

 Astur, 520. 

 Aswail, 671. 

 Atax, 165. 

 Atelodus, 624. 

 Ateuchus, 209. 

 Atoll, 38. 

 Attagenus, 212. 

 Auchenia, 632. 

 Auk, crested, 439. 



great, 437. 



least, 438. 

 Auks, 436. 

 Aurelia, 24. 

 Auroch, 641. 

 Australian bear, 579. 

 Australian dog, 684. 

 Autolytus, 68. 

 Avestruz, 431. 

 Avocet, 477. 

 Axolotl, 360. 

 Aye-aye, 697. 



B. 



Baboons, 704. 

 Bacon-beetle, 212. 

 Bactrian camel, 630. 

 Badger, 600,. 675. 

 stinking, 675. 

 Bag-worm, 277. 

 Balrenoptera, 658. 

 Balaninus, 20:!. 

 Balanoglossus, 71. 



