494 



EXPERIMENT STATION RECORD 



Boads— Continued. 



rural post, Federal aid to, (35) 200. 



sand-flay — 



and topsoil, for North Carolina, (33) 688. 

 construction and maintenance, (31) 890. 



sand, hay, and tar mats for, (39) 87. 



specifications, (29) 487. 



standard cross sections for, (31) 890. 



state administration and control, (40) 688. 



state management, (33) 290; (34) 788. 



state, of New York, (27) 386. 



subcrust movement in, prevention, (31) 785. 



superelevation of curves, (29) 487; (34) 86. 



surface oiling of, (351 288. 



surfacing, (28) 186. 



survey and plans for, (33) 782. 



surveying, (36) 889. 



surveying and mapping, (33) 688. 



tarred, effect on vegetation, (26) 432; (27) 30, 

 333, 635; (28) 38, 129; (31) 827. 



tarred, in France, (27) 190. 



tarring, (30) 588. 



textbook, (35) 583. 



tire widths for, (35) 789. 



traction resistances, (36) 388, 490; (38) 491. 



traffic census data, (37) 188. 



traffic factors, (33) 289. 



treatise, (27) 687; (31) 90, 685; (33) 393. 



vitrified brick pavements for, (33) 686. 



wagon tire width for, (36) 787. 



yearbook, (28) 486; (29) 388; (35) 583; (37) 590. 

 Roadside planting in relation to landscape garden- 

 ing, (39) 449. 

 Eoaring— 



etiology, (29) 500. 



in horses, (31) 585. 



in horses, treatment, (26) 185; (29) 83; (34) 576. 



treatment, (27) 188, 576. 

 Robin- 

 agglutinating properties, (31) 774. 



notes, (26) 676. 



occurrence in locust seeds, (30) 204. 



toxicity, (31) 774. 

 Robinia pseudacacia— 



as affected by tarring roads, (26) 432. 



as coffee substitute, (40) .508, 658. 



poisoning of horses by, (30) 785. 



poisonous constituent of bark (31) 774. 

 Robins— 



coccidiosis in, (26) 187. 



economic importance, (31) 349. 



feeding habits, (32) 648; (38) 457. 

 Roborin, feeding value, (29) 467. 

 Rochelle salts, toxicity, (28) 661. 

 Rock — 



asphalts of Oklahoma, (29) 591. 



fertilizers, ground, tests, (30) 327. 



for road building, see Road materials. 



gardens, treatise, (31) 743. 



phosphate, see Phosphate. 



potash fertilizer, tests, (32) 518. 



road-building, tests, (34) 684, 890. 

 Rockefeller Institute for Medical Research — 



papers, (31) 277. 



studies from, (33) 279. 

 Rockeries, making and planting, (39) 245. 

 Rockfoils, treatise, (34) 45. 

 Rocks — 



aluminum silicate, of Madagascar and West 

 Africa, (32) 511. 



availability of plant food in, (31) 621. 



cementing material, plant food value, (27) 513. 



crystalline, soils from, (27) 416. 



for road building, (35) 84, 685; (37) 386. 



grinding, (27) 500. 



ground, fertilizing value, (27) 500; (28) 33. 



microscopic method of analysis, (35) 84. 



of United States, analyses, (34) 222. 



potash-bearing, in Wyoming, (26) 623. 



relation to plant food constituents of resultant 

 soils, (28) 622. 



silicate, potash salts from, (31) 321. 



solubility of chemical constituents, (28) 812. 



weathering, (29) 123. 

 Rockweed, analyses, (32) 32. 

 Rodent — 



disease, transmissible to man, (33) 450; (34) 355. 



pests of the farm, (39) 460. 



plague, relation to human infection, (34) 355. 

 Rodents — see also Rats, Mice, etc. 



control in Colorado, (34) 651. 

 [ destruction, (27) 52, 754; (37) 568. 



Rodents— Continued . 



destruction on ships, (38) 356. &• 



destruction with hydrocyanic acid gas, (35) 53. 

 destructive, notes, (29) 793. 

 effect on reforestation, (29) 545. 

 genus Aplodontia, revision, (39) 7.59. 

 in California, (40) 56. 

 injurious in Canada, (33) 552. 

 injurious to stored products, (39) 101. 

 lengths of intestines, (30) 545. 

 notes, (28) 450; (34) 528. 

 of Colorado, (39) 555. 

 of Iowa, (40) 546. 

 parasitic acari on, (33) 159. 

 plague affecting, in Suffolk and Essex, (26) 461. 

 plague-like disease affecting, (26) 461. 

 prevalence in Colorado, (30) 249. 

 relation to bubonic plague, (27) 754. 

 relation to poliomyelitis, (36) 354. 

 remedies, (31) 846, 848. 

 supergeneric groups, (40) .54. 

 Roemeria hybrida, analyses, (33) 466. 

 Roentgen rays- 

 effect on — 



bacterial diseases, (38) 481. 



blood. (40) 767. 



chickens, (31) 369. 



cigarette beetle, (29) 359; (35) 554; (40) 758. 



fermentation, (27) 231. 



formation of antibodies, (35) 679. 



fungi, (38) 856. 



germination and growth of plants, (35) 436. 



germination of seeds, (28) 128. 



growth of young animals, (31) 664. 



insects, (28) 57. 



Lepidoptera, (27) 656. 



metabolism in lymphatic leukemia, (37) 



267. 

 microorganisms and ferments, (27) 225. 

 ovaries, (32) 466. 



plant and animal tissues, (30) 729. 

 seeds of Vicia faba, (34) 334. 

 testes of rats, (26) 364. 

 thymus and reproductive organs, (38) 268. 

 tubercle bacilli, (40) 887. 

 vegetation, (33) 31. 

 use against tumors, (29) 476. 

 Roeselia antiqua, parasitic on gipsy moth, (31) 652. 

 Roesleria — 



hypogea, notes, (26) 750. 

 pallida, notes, (36) 861. 

 Roestelia— 



aurantiaea, notes, (29) 547. 

 cancellata, studies, (37) 250. 

 Rogas — see also Rhogas. 



laphygmae n.sp., description, (30) 60. 

 n.spp., descriptions, (38) 165. 

 Rollers, cement, construction, (29) 688. 

 Rollinia— 



classification, (36) 433. 

 notes, (31) 339. 

 Rolllniopsis n.g. and n.spp. from Brazil, (36) 220. 

 Romauxankalk in animal metabolism, (26) 469. 

 Roof paints, tests, (35) 189. 

 Roofing- 

 materials for rural structures, (36) 590. 

 metallic, as affected by smoke, (33) 428. 

 Roofs, masonry, (36) 399. 

 Rooibloem, life history, (26) 440. 

 Rook, feeding habits, (36) 354. 

 Roosevelt Wild-life Forest Experiment Station, 



(40) 800. 

 Roosting closets, notes, (26) 672. 

 Root — 



aphids, nematode parasite of, (35) 658. 



beer, alcohol content, (35) 657. 



borers in West Indian soils, (28) 858; (29) 858; 



(30) 664. 

 cellar, concrete, description, (27) 893. 

 cellar, description, (33) 783. 

 cellars for prairie farms, (35) 690. 

 crop diseases in Saxony, (32) 749. 

 crop diseases, notes, (29) 242. 

 crop seeds in Denmark, (37) 742. 

 crop seeds, production in Sweden, (39) 644. , 

 crops- 

 accuracy of dry-matter determinations, (29) 



310. 

 analyses, (26) 369. 

 as affected by soils, (29) 577. 

 boric acid for, (39) 730. 

 breeding experiments, (40) 735. 



