SUBJECT INDEX 



495 



Root— Continued . 

 crops — continued. 



combined fungus attacks on, (35) 245. 



cooking, (29) 566. 



culture, (34) 630; (39) 834. 

 crops, culture- 

 continuous, (31) ;226. 



experiments, (29) 431; (30) 632; (33) 227; (36) 

 228; (37) 732, 733; (38) 133, 634; (40) 228, 

 625. 



for fall and winter use, (33) 34. 



for winter forage, (38) 735. 



in BrazU, (29) 428. 



Dutch East Indies, (30) 697. 



Nebraska, (40) 521. 



Philippines, (34) 635. 



South Australia, (34) 341; (35) 835; (38) 



540; (40) 340. 

 South Dakota, (40) 32. 

 Sweden, (34) 431. 



on moor soils, (38) 132; (40) 230, 523. 

 crops- 

 dry matter content, (26) 436; (34) 865. 



feeding to breeding animals, (26) 95. 



feeding value, (38) 665; (40) 32. 



fertilizer experiments. (26) 629, 725; (28) 

 828; (30) 229, 626. 



field tests in Phihppines, (40) 228. 



for cows, (29) 577. 

 forage, (28) 41. 

 seed, field tests, (39) 437. 

 work horses, (33) 471. 



insects afiecting, (28) 248; (30) 53; (34) 651. 



irrigation experiments, (28) 828. 



liming experiments, (36) 27. 



"Mav sick" disease of, (30) 399. 



of Chile, (38) 336. 



of Phihppines, (40) 231. 



profitableness of production, (29) 89. 



seed production, (31) 524. 



seeding experiments, (29) 432. 



storage, (26) 95. 



treatise, (37) 645. 



varieties, (26) 424, 725; (28) 828; (29) 427; 

 (30) 229, 435; (31) 829; (37) 228, 533, 733; 

 (38) 31, 333, 432, 634. 



variety tests, (39) 227, 336, 738; (40) 228, 731. 



winter storage, (38) 442. 

 development as affected by — 



fertilizer salts, (29) 328. 



phosphates, (33) 526. 

 formation and geotropic curvature of stem, (37) 



325. 

 gall, cause and treatment, (27) 749. 

 geotropism, relation to starch, (29) 322. 

 growth- 



as affected by carbon dioxid, (40) 820. 



as affected by oxygen supply, (40) 30. 



in swampy meadows, (40) 211. 



methods for studying, (40) 629. 



of cuttings, stimulation, (39) 826. 



of forest trees, (35) 223. 



periodicity in, (34) 29. 



soil temperature factor, (40) 130, 426. 



studies, (39) 122. 

 habits of desert plants, (26) 728. 

 hairs, callose in, (29) 326. 

 hairs, glandular, (37) 222. 

 hairs, production in water, (36) 433. 

 hairs, structure, (28) 814. 

 knot nematodes in Hawaiian Islands, (40) 51. 

 knot, notes, (30) 746. 

 knot, studies. (26) 342. 



knot, treatment, (32) 842; (34) 245; (37) 453. 

 maggot- 

 injurious to crops in Louisiana, (37) 854. 



notes, (29) 252, 454; (34) 753; (35) 396. 



remedies, (33) 62; (36) 657. 



studies, (37) 566, 599. 

 nodules — 



of Ceanothus americanus, (35) 132. 



of Podocarpeae, (27) 828; (30) 523. 



studies, (38) 731. 

 parasites, notes, (31) 842. 

 rot, control, (39) 852. 

 rot, treatment, (26) 331. 

 secretions, function of, (31) 221. 

 secretions of plants, (30) 228. 

 structure as affected by — 



abnormal tension, (32) 825. 



compression, (32) 826. 



Root— continued, 

 systems of— 



agricultural plants, (31) 733; (33) 526. 



cereal and forace crops, (:J9) 230 



desert plants, (30) 827; (39) 29. 



Indian crops, (39) 230. 



plants, atlas, (32) 634. 



plants, development, (34) 727. 



plants in relation to soil moisture, (31) 514. 



plants, measurements, (28) 228. 

 tips, permeability, (28) 126. 

 tubercles— sff also Xodule bacteria. 



formation, (27) 25; (34) 727. 



formation as affected by nitrogenous salts. 

 (37) 133. 



production as affected by nitrates, (35) 634. 



urease in, (35) 334. 



variations in, (36) 527. 

 tumors, notes, (27) 544; (31) 841. 

 Rootlets— 



chemotropism in, (32) 128. 

 secondary, of cereals, (40) 32. 

 Roots — sec also Plant roots, 

 absorption — 



and exertion of salts by, (26) 624. 



of ions by, (34) 334. 



of nutrients by, (37) 222. 

 adsorption of nitrown by, (29) 732. 

 aeration experiments, (34) 334. 

 anatomical structure in different media, (37) 431. 

 as affected by anesthetics, (32) 626. 

 as affected by illuminating gas, (34) 243. 

 assimilation of atmospheric carbon by, (38) 329. 

 autotropic readjustment, (28) 430. 

 contractile, structure and function, (33) 724. 

 cooking, (29) 566. 



determination of dry matter in, (26) 312; (27) 9. 

 edible, use in Surinam, (28) 761. 

 effect on soil structure, (30) 120. 

 ensiled, inoculating with lactic acid bacteria, 



(32) 767. 

 epidermal cells, (37) 128. 

 excretion of acids by, (39) 27. 

 factors affecting brar.ching, (27) 223. 

 for Limbs, (29) 271. 

 forest tree, growth, (37) 27. 

 geotropic sensitivity, (36) 330. 

 growth as affected by temperature, (36) 28. 

 growth, relation to oxygen, (36) 525. 

 hemicellulose in, (30) 130. 

 hydrotropism in, (34) 223. 

 injuries by disinfectants, (32) 647. 

 injury by arsenicals, (40) 449. 

 losses in cooking, (28) 460. 

 negative geotropism, (37) 325. 

 of herbaceous plants, treatise, (36) 223. 

 orientation, (36) 129. 



orientation as affected by media, (35) 223. 

 osmotic pressure in relation to soil moisture 



(36) 733. 

 oxygen requirements, (38) 628. 

 physical relation to soil factors, (30) 223. 

 reaction to soil temperature, (32) 626. 

 relation to oxygen, (37) 525. 

 sampling device for, (37) 711. 

 secondary, orientation, (37) 27. 

 secretion of toxic substances by, (35) 636. 

 solvent action of, (31) 729. 

 starchy, as food, (36) 560. 

 succulent, food value, (36) 863. 

 thermotropism in, (31) 728; (32) 222. 

 toxic excretions from, (33) 31. 

 tree, adaptations to aquatic mediums, (30) 45. 

 use as condiments, (36) 863. 

 Rope — 



estimation of manila fibers in, (39) 15. 

 fastenings, tests, (33) 190. . ^ , , ,„„ • 

 knots, hitches, and splices with, (31) 590. 

 knotting and sphcing, (29) 390; (35) 495. 

 manila, manufacture, (29) 86. 

 manila, transmission of power by, (31) 688. 

 transmitting power, (30) 190. 

 * use on the farm, (30)591; (38)893. 

 uses, (32) 898. 



work, exercises in, (32) 697. 

 Rosa — 



hugonis, description, (34) 45. . 



imperfection of pollen and mutability m, (37) 



328. 

 rugosa, culture in Alaska, (29) 743. 

 rugosa, tests, (37) 143. 



