INDEX 



Actinomyces scabies, 240. 

 Aeschnidae, 445, 446, 447, 448, 449, 451, 



452. 

 Agrionidae, 382, 420, 448, 450, 451, 452. 

 Agrionina larvae (lacustrine), 544. 

 Albugo Candida, 255. 

 Alfalfa, 125. 



diseases, 203-204, 278, 295. 

 Algae, 334, 442, 447, 455, 542, 546. 

 Allorchestes d'entata, 544. 

 AInus sp., 15. 

 Alternaria brassicae, 252. 



solani, 239, 241 

 Amelanchier, 15. 

 Amia, 543. 

 Amnicola cincinnatiensis, 420. 



emarginata, 351, 364, 380, 418, 419. 

 421. 



(lacustrine), 544. 



limosa, 364, 418, 420. 



lustrica, 419, 420. 



sp.. 381. 

 Amnicolidae, 334, 337, 363, 392, 404. 



412, 418, 419, 421. 

 Amphipoda, 417. 



Amphipods (lacustrine), 544, 547. 

 Anacharis, 542. 

 Anax Junius. 445, 446, 456. 

 Ancylidae, 418, 419, 420, 421. 

 Ancylus (lacustrine), 544. 



sp., 381, 418, 419, 420, 421. 

 Andropogon sp., 5. 

 Anguillulidae (lacustrine), 544. 

 Animalcules (lacustrine), 539. 

 Animals (lacustrine), 537, 550. 

 rate of reproduction, 519. 

 struggle for existence, and natural 



selection, 549-550. 

 system of life resulting, 550. 

 Anisoptera, 442. 



Annelids, 341, 344, 346, 352, 361, 440. 



See also Tubificidae. 

 Anodonta corpulenta, 384, 419. 



imbecillis, 375, 384, 385, 418, 419, 421. 

 (lacustrine), 544. 

 suborbiculata, 385. 

 Anopheles punctipennis, 450. 

 Apple, 16, 206, 214. 



Ben Davis, 210, 211, 212, 278. 



Delicious, 210. 



diseases, 206-214, 259, 272, 273-275, 



278, 279, 297-301. 

 Flea-weevil, 1-37. 

 Gano, 210. 



Grimes Golden, 209, 212. 

 Liveland Raspberry, 209. 

 production, 297. 

 Willow Twig, 210. 

 Apricot, 223. 



diseases, 223-224, 278. 

 Arbor vitae. 111. 

 Arcidens confragosus, 385. 

 Argia moesta putrida, 448, 450, 452, 

 456. 

 violacea, 444. 

 Asellus, 455. 



intermedius, 417, 419. 

 Ash, 61, 72, 73, 74, 85, 86, 91, 112, 113, 



116, 117, 119, 131, 143. 

 Asparagus, 249. 



diseases, 249-250, 278, 320. 

 Palmetto var., 249. 

 Washington, 249. 



Bacillus amylovorus, 207, 214, 218. 



astrosepticus, 240. 



tracheiphilus, 244, 247. 

 Back-swimmers, 457. 

 Bacteria. 348, 424. 

 Bactis sp., 448, 449, 450, 451, 456. 



