46 INDEX TO YEAKBOOKS, 1901-1905. 



Dendroctonus hrevicomis, beetle destructive to western yellow pine, note, 1902, 281. 

 frontalis, pine-bark beetle, discussion, 1902, 270-275. 

 minor species in relation to destruction of timber, 1902, 281. 

 piceaperda, spruce-destroying beetle, discussion, 1902, 266-270. 

 ■ponderosx, pine-destroying beetle of Black Hills, discussion, 1902 

 275-281. 

 Dendrology, work of Bureau of Forestry in 1904, 1904, 59. 



Forest Service, remarks by Secretary, 1905, 57. 

 Denmark, cowhouse, cleaning and care, remarks, 1902, 149. 



oleaginous seeds and nuts, imports and exports, 1903, 425-426. 

 use of oil cake for cattle feed, 1902, 434. 

 Denton, A. A., work with sorghum to increase sugar content, 1901, 300. 

 Denver center, weather forecasting, States, 1903, 114. 

 killing of grasshoppers with fungus, 1901, 468. 

 Deodorant, use of formaldehyde, 1905, 481. 

 Department of Agriculture. See Agriculture, Department. 

 Dermanyssua galhnse, remarks, 1905, 146. 

 Desert-land act, need of repeal, notes, 1901, 93, 96. 

 Dew retting of hemp, 1901, 549. 



Dewey, Lyster H., article on "Principal commercial plant fibers," 1903, 387-398. 



" Hemp industry in the United States, ' ' 1901, 541-554. 

 identification of Asiatic cotton, 1904, 476. 

 Diabrotim longicornis, damage to corn, 1904, 465. 

 Diaspis, occurrence in Japan, 1902, 163. 

 Diatomacese, pollution of drinking water, discussion, structure; multiplication, 1902, 



181-182. 

 Diet, average composition in United States, 1902, 397. 



fruit and nut, study of University of California, remarks, 1904, 106. 

 in the Tropics, remarks, 1902, 190. 

 of man, and food, investigations, 1901, 82. 

 reasonable and satisfactory, discussion, 1902, 388. 

 Dietaries in public institutions, article by W. O. Atwater, 1901, 393-408. 



pecuniary aspects, 1901, 405. 

 recent studies, 1901, 401. 

 need of gradual improvement, 1901, 408. 

 principal underlying inquiries, 1901, 397. 

 Dietary inquiries in New York hospitals for insane, advantages derived, 1901, 403. 

 public institutions, humanitarian aspects, 1901, 406. 

 threefold advantage, 1901, 404. 

 investigations, 1901, 82. 

 standards, proposed, for adults, table, 1901, 400. 



relations to physiological demands, 1901, 398. 

 studies and digestion experiments with Maine lumbermen, remarks, 1904, 106. 

 Government Hospital for Insane, remarks, 1904, 105. 

 need of experts, 1901, 408. 

 remarks, 1902, 108; 1903, 92. 



supply of essential food constituents in fruits and nuts, 1905, 314-316. 

 Dietetics in Army and Navy, remarks, 1901, 395. 

 educational institutions, 1901, 407. 

 relation to reformatory and penal institutions, 1901, 394. 

 Digestibility, bread, discussion, 1903, 358-361. 



food, effect of variety of materials, 1905, 316. 

 fruit, discussion, 1905, 316-318. 

 Digestion and health, effect of preservatives in food, article by H. W. Wiley, 1903, 

 289-302. 

 artificial, treatment of food in study of preservatives, 1903, 290. 

 completeness, relation to value of grades of flour, 3904, 106. 

 experiments and analyses of food materials, notes, 1901, 396. 



dietary studies with Maine lumbermen, 1904, 106. 

 remarks, 1903, 91. 

 Digitalis purpurea, cultivation, 1905. 539. 



Di'neba, or barnyard grass, use on alkali lands in Egypt, 1902, 580. 

 Dip for Texas fever ticks, use of Beaumont petroleum, 1903, 506. 



sheep scab, manufacturers' objections to Government work against disease, 1903, 

 501. ^ 



Dipping cattle for control of scab disease, 1903, 505; 1904, 21, 22, 1905, 26. 

 sheep for control of scab disease, order and work, 1903, 499. 

 scab, objections urged, 1903, 500-502, 



