SUBJECT INDEX 



499 



Rubber— Contimiofl. 

 tapping— 



and storage of plant food in, (33) 543. 

 by electricity, (28) 146. 

 experiments, (26) 443; (27) 44; (29) 240, 644, 

 843; (30) 535, 646; (31) 241, 342; (32) 742; 

 (33) 536, 542, 543. 640; (341 47; (35) 451, 

 544, 649; (37) 147, 347; (39) 61, 451, 751, 

 848; (40) 843. 

 experiments, probable error in, (37) 837. 

 wounds, cicatrization, (37) 548. 

 termites affecting, (30) 250. 

 tests, (27) 245. 

 thrips, notes, (39) 360. 

 trade, statistics, (27) 245. 



treatise, (30) 146, 347, 646; (31) 143, 144; (33) 

 343. 



anatomical studies, (29) 812. 

 and reserves of the Amazon, (27) 244. 

 nodules on, (30) 850. 

 of Costa Rica, (27) 147. 

 variability, studies, (40) 546. 

 varieties, (27) 438. 

 varieties in West Africa, (27) 244. 

 vines of Africa, (27) 244. 

 viscosity, (27) 244; (39) 752. 

 vulcanization, (27) 244. 

 water content, (39) 806. 

 wild, adulteration, (27) 244. 

 wild lettuce, composition, (29) 241. 

 yielding — 



species of northern Madagascar, (28) 239. 

 species, paper on, (26) 843. 

 species, treatise, (34) 838. 

 trees in Malay States, (36) 540. 

 Rubiaceae — 



bacterial symbiosis, (32) 327. 

 nitrogen-fixing bacteria in leaves, (27) 225. 

 Rubidium- 

 alum, fertilizing value, (30) 627. 

 chlorid, fertilizing value, (30) 627. 

 determination in plant ash, (38) 412. 

 eSect on Aspergillus niger, (28) 527; (30) 630. 

 in plants, (38) 409. 



in soUs, (31) 720. ^ ^ 



salts, effect on sacchariflcatlon of starch, (26) 



309. 

 sulphate, effect on plants, (28) 527. 

 Rubus— 



forcing experiments, (38) 443. 

 hybridization in (31) 47; (35) 227. 

 occidentalis, inoculation experiments with 



brown rot fungus, (33) 247. 

 orange rusts, (37) 457; (38) 464. 

 pollen sterility in, (37) 131. 

 5pectabilis, hybridization experiments, (28) 436. 

 spp. as a medicinal plant, (30) 145. 

 Rudbeckia hirta — 



inheritance of variations in, (36) 522. 

 inheritance studies, (40) 131. 

 variation in, (27) 741; (32) 728. 

 Rudbeckias, varieties at Wisley, (33) 636. 

 Rue, goats', culture experiments, (30) 632. 

 Rufus scale, notes, (27) 357. 

 Rum- 

 distillation, (35) 718. 

 Jamaica, fermentations in, (26) 613. 

 judging, (26) 209. 

 notes, (26) 613. 



acetosella, description and eradication, (37) 239. 



acetosella, growth in alkaline media, (40) 40. 



spp., dissemination by farm animals, (26) 839. 

 Ruminant, fossil, from Rock Creek, Texas, (34) 264. 

 Ruminants— 



anatomy and histology of third stomach, (28) 

 271. 



anatomy of stomach, (27) 68. 



digestion in, (26) 469. 



direct transfer of food and drink of, (29) 66. 



resorption in stomachs of, (27) 671. 



respiration and assimilation in, (31) 71. 



respiration experiments. (32) 767. 



stomachs, protozoa in, (30) 577. 

 Rumination, investigations, (26) 469. 

 Run-off— 



and evaporation, relation to precipitation, (40) 

 810. 



as affected by forests, (27) 348; (30) 620. 



Run-oft— C ontinued . 

 computing, (33) 775. 

 dctenniualion, (31) 384; (38) 590. 

 estimating, (30) 288, 88(1. 

 in eastern Uniteil States, (.38) 717. 

 maximum, (Ictermination, (35) 684. 

 tables for estiituitiug, (27) 385. 

 Ruppia maritinia, culture for wild ducks, (.33) 251. 

 Rural — see alio Conmiunity and Country. 

 administration in France, (40) 891. 

 and mercantile economics, (40) 388. 

 and urban populations, comparative birth rate, 



(38) 191. 

 attitudes, theory of> (37) 491. 

 banking conditions in Illinois, (31) 788. 

 banking system in Virginia, (29) 91. 

 children, survey in North Carolina, (40) 892. 

 civilization, ideal, (35) syi. 

 classes in Russia, evolution of, (30) 192. 

 clubs in Wisconsin, (36) 192. 

 communities — 



bibliography, (32) 389. 

 central electric station for, (30) 788. 

 decline of, (26) 593. 

 eugenics in, (40) 193. 

 evolution, treatise, (28) 687. 

 heat, light, and power for, (28) 487. 

 improvement, (27) 898. 

 in Wisconsin, (32) 593. 

 organization, (33) 292. 

 organization in Kansas, (34) 689, 

 play and athletics for, (30) 496. 

 problems of, (20) 594. 

 recreational and social needs, (33) 190. 

 social survey of, (20) 687; (31) 294. 

 syllabus for study, (32) 592. 

 community- 

 betterment work, (31) 499. 

 center, plan for, (30) 496. 

 interests, unifying, (32) 488. 

 mobilizing, (40) 486. 

 model, atQhent Exposition, (30) 301. 

 planning, (32) 10. 

 conditions — 



improvement, (29) 691; (31) 895; (32) 388, 



592 

 in Alabama, (37) 91. 

 Canada, (38) 791. 

 Great Britain, manual, (30) 491. 

 United States, betterment, (30) 305. 

 continuation school for boys and girls, (27) 695. 

 cooperative laundry, (35) 191. 

 credit — see also Agricultural credit. 



banks in England and Wales, (27) 592. 

 banks in Uruguay, (27) 795. 

 decline in New England, (37) 593. 

 demonstration schools, paper on, (33) 194. 

 depopulation- 

 cause, (26) 592; (31) 294. 

 cause and prevention, (30) 492. 

 correcting, (29) 896. 

 in Canada, (20) 896. 

 England, (31) 490. 



England and Wales, (31) 295; (32) 390. 

 France, (26) 387; (30) 91, 895. 

 Germany, (26) 490. 

 Great Britain, (30) 791. 

 Illinois, (30) 895. 

 Mexico, (26) 594. 

 Michigan, (31) 595. 

 Minnesota, (29) 490. 

 Nebraska, (20) 593. 

 Ohio, (26) 489. 

 southern Ontario, (28) 688. 

 various countries, (31) 592. 

 notes, (29) 101; (30)895. 

 paper on, (27) 690. 

 treatise, (33)91. 

 development — 



in Burma, handbook, (31) 391. 

 in Canada, (40) 790. 

 treatise, (28) 790. 

 districts— 



cottage building in, (33) 490. 

 electricity for, (32) 885. 

 housing in, (33) 893. . „„, „„ 

 of Spain, characteristics, (39) 690. 

 economic and social reforms, (40) 789. 

 economics— . 



and sociology, bibliography, (28) 492. 



