INDEX TO YEARBOOKS, 1901-1905. 155 



Trees, shade, diseases, 1901, 672; 1902, 718; 1903, 555; 1904, 586; 1905, 610. 



injurious insects, 1901, 676, 677; 1902, 727-733; 1903, 564-565; 1904, 

 602-605; 1905, 635. 

 speeies and arrangement in wind-break, 1904, 265. 



favored in selection of seed trees at Sewanee, Tenn., 1901, 474. 

 making up new growth in Nebraska, 1901, 209. 

 timber, some susceptible of preservative treatment, 1903, 427. 

 valuable dissemination by Department, 1901, 38. 



young, growing for forest planting, article by E. A. Sterling, 1905, 255-270. 

 protection from mice and rabies, 1901, 603. 

 top working, details, 1902, 250. 

 See also Forest; Plants; Timber. 

 Trematoda. See Flukes. 



Trial grounds. Department, seed testing, etc., 1905, 304. 

 Trichinella spiralis, transmission and danger to man, 1905, 152-155. 

 Trichinosis in Germany, 1905, 29. 



Trifoliate orange, description, use in breeding citrus fruits, 1904, 224-227. 

 Trifolium spp., fertilization, notes, 1905, 385, 386. 

 Trolley, railroad lines, extension, growth of rural population, 1903, 455. 

 Tropical agriculture, mistakes of enterprises, 1901, 352. 



problems in new tropical territory, 1901, 28. 

 promising crops, 1901, 353. 

 countries, food investigations, need, 1902, 109. 

 fruits and plants, work at Porto Bico Experiment Station, 1903, 90. 



diseases, 1905, 1905, 606. 

 islands of the United States, agriculture, article by O. F. Cook, 1901, 349-368. 

 vegetables, growing in Porto Rico, notes, 1904, 103. 

 Tropics, improvement of health conditions, 1901, 349. 



proposed study of food supply and consumption, 1901, 83. 

 Trotter, foundation of American breed of horses, 1904, 531-533. 

 Trotting horse, development, note, 1901, 219. 



Trouvelot, Prof. L., gipsy-moth introduction into United States, 1905, 123. 

 Truck gardening, business suggestions, 1904, 164, 165, 167. 



crops, diseases, 1901, 670; 1902, 717-718; 1903, 552-554; 1904, 584-585; 1905, 606- 

 608. 

 in Yazoo region of Mississippi, note, 1901, 128. 



insects injurious, 1901, 675; 1902, 727-732; 1903, 563-566; 1904, 601-605; 

 1905, 629-630. 

 ~ investigations, 1903, 77. 

 notes, 1905, 196. 



statistical investigation, prospective, 1904, 91. 

 farming, use in work against boll weevil, 1904, 505. 

 gardening, suggestions, 1904, 164, 165, 167. 

 growers, need of organization, 1904, 187. 

 growing, relation to diversified farming in South, 1905, 203. 

 lands. New Jersey, soil survey, 1901, 127. 

 soils, surveys, remarks, 1905, 65. 

 Truckers, advantage of sand-clay road, Newborn, N. C, 1903, 264, 

 Trucking, development and needs, 1904, 186-187. 



See, also Gardening. 

 True, A. C, article on "Progress in secondary education in agricvilture," 1902,481-500. 

 "Some problems of the rural common school," 1901, 133-154. 

 Rodney H. , article on ' ' Cultivation of drug plants in the United States, ' ' 1903, 

 337-346. 

 "Progress in drug-plant cultivation," 1905, 538-540. 

 Trypanosomes, transmission by flies, 1905, 166. 

 Tsetse fly, bite, cause of fatal effect, 1905, 166. 



disease spread among cattle, 1901, 190. 

 Tsuga heterophylla, chemical study of wood and bark, 1902, 322. 

 Tubercles, nitrogen-gathering, microscopic appearance and effect, 1902, 338. 

 Tuberculin, distribution, note, 1901, 21; 1904, 23. 



test, effect on tuberculous cattle, 1901, 591. 



efficacy and question of error, 1901, 583, 584. 



for tuberculosis, article by D. E. Salmon, 1901, 581-592. 



general conclusions, 1901, 591. 



imported animals, 1901, 20. 



pure-bred cattle, 1901, 20. 



