18 INDEX TO YEAKBOOKSj 1901-1905. 



Birch, yellow, Forestry Bureau experiments, 1904, 453. 



grades, yields, etc., in lumber experiments, 1904, 455-458. 

 value by sizes and prices, 1904, 457. 

 Bird day in States, note, 1902, 212. 

 depredations, causes, 1904, 243. 



food, supply of wild berries and avaUabUity in Eastern States, 1904, 244-245. 

 migration, study, remarks, 1904, 88. 

 protection, farmer's interest, discussion, 1902, 216-218. 



means suggested, 1902, 218. 

 protective law, model, as proposed by Ornithologists' Union, chart showing adop- 

 tion, 1902, 214. 

 reservations, establishment, 1905, 88. 

 Birds, advantage about a home, remarks, 1902, 217. 

 esthetic value, remarks, 1902, 206. 

 and game, protection, organizations, lists, 1901, 634; 1902, 680-689; 1903, 525; 



1904, 556; 1905, 580. 

 California, migration and depredations, 1904, 242. 



rapid increase of many species, with causes, 1904, 241-242. 

 check on noxious insects, note, 1903, 81. 

 damages to crops generally, remarks, 1904, 245. 

 danger from poisoned bait for mice, remarks, 1905, 374. 



of extinction, discussion, 1902, 206-209. 

 destruction in flight; distance of migration, 1903, 374. 



of insects, remarks, 1902, 206. 

 eating of noxious insects, 1904, 253-254. 

 economic, relation to agriculture, 1903, 81. 

 effect of long flight in migration, 1903, 378. 

 field work in study of food habits, 1902, 91. 

 food habits, beneficial and harmful, 1904, 87-88. 

 foreign, entry into United States, remarks, 1904, 88.> 



under Lacey Act, remarks, 1901, 110; 1905, 87. 

 importation, note, 1904, 88. 



regulation, 1905, 543-546. 

 fruit-eating, in California, investigation by Biological Survey, 1904, 243. 

 game and nongame protection, 1903, 566-569; 1905, 611, 617. 

 raising in captivity, experiments and results, 1904, 516. 

 two vanishing, the woodcock and the wood duck, article by A. K. Fisher, 



1901, 447, 458. 

 See also Grame birds, 

 importation, 1901, 110; 1904, 609-610; 1905, 616. 

 information from light-house keepers, note, 1903, 371. 

 injurious, importation prohibition, 1904, 5l5. 



species, protection against, 1904, 514-515. 

 to crops in California, discussion, 1904, 246-254. 

 killing for food, remarks, 1902, 208. 

 kinds in migration to South America via Cuba, 1903, 376. 

 live importations, extent, 1905, 544. 

 migration, finding course of travel, 1903, 372-373. 



relation of seeing to keeping course of travel, 1903, 372, 373. 

 relative positions of groups, and peculiarities, 1903, 380-382. 

 routes, discussions, 1903, 375-378. 



some new facts, article by Wells W. Cooke, 1903, 371-386. 

 spring, special features, 1903, 381-382. 

 variations in, speed, 1903, 383-384. 

 native, discontinuance of use of plumage in millinery, 1905, 557. 

 nongame, protection, remarks, 1903, 568. 

 protected species, breeding grounds, 1905, 561. 

 protection, 1903, 566-569; 1905, 611-617. 



in American colonies, 1904, 509-511 . 



organizations, officers, 1901, 634; 1902, 686-689; 1903, 525; 1904, 

 556; 1905, 580. 

 relation to fruit growing in California, article by F. E. L. Beal, 1904, 241-254. 

 useful and noxious, remarks, 1901, 109. 



protection, 1904, 513-514. 

 ■\alue to nation, discussion, 1902, 205-206. 

 Bison, diminution in numbers, note, 1902, 207. 

 Bisulphide of carbon, use against prairie dogs, 1901, 267. 



