INDEX 



Adaptation, 72, 92, 103, 104, 173. 

 Esthetics of nature-study, 57. 

 Agricultural schools, 483. 

 Agriculture, 260, 485, Chap. XX 



506. 



Aigrettes, 136. 

 Aims of nature-study, Chaps. II, 



III, XX. 

 Algae, 503. 

 Alligator, 164. 

 Amanita, 394. 

 Amphibians, 148, 149. 

 Animal study, 71; outline, 73. 

 Animals, useful. (See useful Animals.) 

 Annual rings, 307. 

 Annuals, 444. 

 Anopheles, 213. 

 Ant cage, 231. 

 Ants, 218, 230, 441. 

 Aphides, 217. 

 Apple, 219. 

 Apteryx, 103. 

 Aquaria, 165; animals, 168, 257; 



care, 166; lessons, Chap. XX. 

 Aquatic insects, 177, 191. 

 Aquatic plants, 491. 

 Arbor Day, 374; programme, 384, 



Chap. XX. 



Art study and nature-study, 57. 

 Astronomy, Chap. XX. 

 Attracting birds, 143, 421-447. 

 Audubon Society, 138, 139. 



Bacteria, 471, 476, 488, 494. 

 Balloon-spider, 248. 

 Balsam, 352. 

 Bark, 309, 352. 

 Bark lice, 218. 

 Barometer, 469. 



Bat, 463. 



Beautification of school grounds, 

 281, 374. 



Beauty of nature, 17, 58. 



Bed bugs, 214. 



Bee-fly, 245. 



Bees, 205, 225, 43-45 6 - 



Beetles, 199; borers, 202; cucum- 

 ber, 201; fire-fly, 202; goldsmith, 

 202; June beetle, 199; lady bug, 

 202; potato beetle, 201; rose 

 chafer, 201; tiger beetle, 202. 



Berries, 120, 121, 143, 352. 



Biennials, 304, 444. 



Bird Day, 140. 



Bird houses, 145. 



Bird lessons, Chap. XX. 



Bird-Lore, 140. 



Birds, 81, 89, 99; attracting, 143, 

 421, 447; Audubon Society, 139; 

 bills, 100; calendar, 90; care of 

 young, 116; color, 96, 104; eco- 

 nomic, 122, 221, 449; eggs, 94; 

 enemies, 105, 132; feet, 99; flight, 

 102; food, 119; fruit dispersal, 

 352; general structure, 99; les- 

 sons on, Chap. XX; migration, 

 116; moulting, 107; nests, 92, 

 no; observation, 85; plumage, 

 101; protection, 132; song, 95, 

 106; where found, 87; wing, 92- 

 99; young, 96. 



Bird trough, 283. 



Bison, 462. 



Bittern, 105 



Black bass, 173. 



Blackbird, 106, 112, 117, 120, 124. 



Blood, 456. 



Bloodroot, 309 



539 



