86 INDEX TO YEAEBOOKS, 1901-1905. 



Iowa, migration of robins, 1903, 384. 



new road law, advantage promised, 3903, 458. 



reports on agriculture, 1904, 524, 



roads, character and costliness, 1903, 457. 



legislation, 1905, 624. 

 school fairs, study of agriculture, 1904, 494-495. 



seed-corn trains, use in giving instruction about corn growing, 1905, 410. 

 soils, areas surveyed, 1905, 618. 



State College, tests of corn planters and windmills, 1904, 112. 

 station, experiment in feeding cattle, 1903, 84. 

 Ipomcea purpurea, fertilization experiments of Darwin, 1905, 384. 

 Ireland, macadam roads, estimated cost of constructing, 1901, 528. 

 Irrigable and grazing lands, benefits of union in use, 1901, 94. 

 Irrigated agriculture, importance of water supply and its regulation, 1901, 84-86. 

 areas, influence of environment on sugar beet, 1901, 317. 

 crops in Africa, study, remarks, 1902, 34. 

 districts, farming land, drainage, 1904, 109. 



injury by alkali and reclamation, 1904, 72-74. 

 lands, drainage, discussion, 1902, 234-242. 



kinds of drains for use, 1902, 239. 

 region of United States, distribution of seasonal rainfall, 1902, 640-642. 

 regions, soil work, discussion, 1901, 130. 

 Irrigation, analysis of waters, discussion, 1902, 286-291. 



and alfalfa, factors in Colorado potato growing, 1904, 312-313. 

 diversified farming, improvements, 1902, 598. 

 rainfall, article by Edward A. Beals, 1902, 627-642. 

 building laterals, 1903, 245-248. 

 conditions and lay of land favorable, 1903, 239, 241. 

 construction, 1903, 575; 1904, 618. 



control, public, 1901, 680-682; 1902, 736-737; 1903, 573; 1904, 616. 

 cost of prei)aring land, remarks, 1904, 107. 

 court decisions, 1903, remarks, 1903, 574. 

 dam at Assuan in Egypt, description, 1902, 575. 

 data of reservoirs in Poudre and Big Thompson valleys, 1901, 427. 

 development, influence of free use of grazing lands, 1901, 93. 



land laws, 1901, 92. 

 disposal of land by General Government, remarks, 1903, 575. 

 ditches, damage to drainage by prairie dogs, 1901, 264. 

 Eastern United States, remarks, 1903, 96-97. 

 effect on farm land prices, 1905, 528. 

 excessive use of water, 1901, 47. 

 for rice crop, remarks, 1902, 630. 

 foreign studies, 1903, 97. 



forest management, relation, and Government aid, 1902, 143. 

 in Egypt, discussion, 1902, 574-575. 



humid sections, remarks of Secretary, 1901, 87; 1902, 112; 1904, 108. 

 Poudre Valley in 1901, remarks, 1901, 424. 

 raisin district of California, 1902, 414. 

 Utah, causes for shortage of water, 1901, 46. 

 West, relation of forest cover, notes, 1902, 142. 

 injury by excessive use of water, study, 1902, 93-94. 



filling alkali lands with water, 1902, 236. 

 investigations, 1901, 83, 680-682; 1902, 735-737; 1903, 572-576; 1904, 612-618. 

 ork of Department, discussion by Secretary, 1902, 109- 

 113; 1903, 92-99; 1904, 106-113; 1905, 118-120. 

 laws and institutions, 1903, 573; 1904, 616-617; 1905, 649. 



studies, discussion, 1902, 111. 

 legislation, points to be guarded, 1901, 91. 

 locating farm laterals, 1903, 243-245. 

 loss of water by, 1902, 235. 

 national aid, discussion, 1901, 89. 

 notes and observations of Secretary, 1901, 11, 83-96. 

 of sugar beets, remarks, 1903, 405^06. 

 officials, 1901, 622; 1902, 674. 

 Porto Rico experiments, 1904^ 102. 

 practices and mechanical devices in Colorado potato growing, 1904, 317-322. 



