1901-1905. 49 



Droughts, crop season, 1901, 651; 1902, 702, 706, 708; 1903, 529, 531-535, 540; 1904 

 563-575. ... 



relation to root systems induced by abundant rains, 1902, 69. 

 Drug laboratory, establishment, note, 1902, 79. 



plant cultivation, progress, article by Rodney H. True, 1905, 533-540. 



United States, article by Rodney H. True, 1903, 337-346. 

 investigations, Bureau of Plant Industry, 1903, 33; 1905, 49. 

 plants, Amencan-grown, remarks, 1904, 31-32. 



demand for product, limited character, 1905, 540. 

 neglect and its consequences, 1905, 533. 

 prospects for Rowing, 1903, 342-343. 

 substances advanced in value by preparation, imports, 1903, 341. . 

 Drug-producing plants, importation, discussion, with tables, 1903, 339-342. 

 Drugs, adulteration, article by Lyman F. Kebler, 1903, 251-258. 

 analysis for quality, two methods, 1903, 252, 

 and their preparations, proposed study, 1903, 258. 

 crude, curing and storing, 1903, 253-254. 

 factors affecting quality, discussion, 193, 253-254. 

 importance of purity, 1903, 254. 

 imported, cultivation, discussion, 1905, 536-540. 

 study, Chemistry Bureau, 1905, 61. 

 Dry dock at Portland, Oreg., remarks, 1901, 571. 

 San Francisco, remarks, 1901, 569. 

 Tacoma, remarks, 1901, 572. 

 farming, areas of successful practice, 1905, 430. 



crops and conditions in Colorado, 1905, 429. 

 hazards and losses, 1905, 425-429. 



relation of irrigation, article by Elwood Mead, 1905, 423-438. 

 remarks by the Secretary, 1902, 96; 1903, 28. 

 size and requirements of farms, 1905, 437. 

 Drying hemp, 1901, 548. 



Dry-land agriculture, remarks, 1903, 28; 1904, 50. 

 Dryocwtes dchhdjp, birch bark beetle, remark, 1903, 320. 

 Duck, as vanishing game bird, discussion, 1901, 454. 



wood, and other, effect of protection, note, 1901, 458. 



woodcock, two vanishing game birds, article by A. K. Fisher, 1901, 

 447^58. 

 Ducks, abundance in United States, 1905; 1905, 615. 

 ■ breeding grounds, 1905, 88, 561. 

 number in United States, 1890-1900, 1902, 301-303. 

 production in United States, 1902, 301-303. 

 protection by Texas laws, note, 1904, 89. 

 Duggar, Prof. J. F., steer feeding experiment in Alabama, 1904, 536. 

 Duniam, M. W., beginning of horse breeding, note, 1902, 259. 

 Dunlop, Dr. J. C, investigation of dietaries, 1901, 401. 

 Durum wheat, introduction into United States, and value, 1904, 27; 1905, 293. 



wheats, countries of commercial production, 1903, 329. 

 Dust on roads, use of oil in laying, 1902, 440. 

 Duty of water and application to soil, remarks, 1904, 107. 

 in irrigation, 1903, 93. 

 studies, remarks, 1901, 86. 

 Dwarf banana, suggestions for planting in Porto Rico, 1901, 355. 

 Dwarfing fruit trees by top working, note, 1902, 247. 



remarks, 1901, 439. 

 Dye, Franklin, remarks on tuberculin test for tuberculosis, 1901, 589. 

 Dyeing and printing cotton goods, use of castor oil, 1904, 287-290. 

 Dyes in mohair goods, fast quality, 1901, 278-281. 



E. 



Ears, corn, relation to seed selection, 1902, 545-547. 

 Earth roads, experiments and construction, 1903, 327. 



improvement, notes, 1902, 118. 

 Earthquakes, records of disturbance at Washington and elsewhere, 1903, 32. 

 Earthworm, staple food of woodcock, 1901, 449. 

 Earthworms, relation to spread of young worms, 1905, 150. 

 East, agricultural progress, 1903, 13. 



55412— Bull. 9—08 4 



