1010] 



IliTDEX OF SUBJECTS. 



987 



Root — 



absorption from solutions at iiiiniinuin 

 concentration, 132. 



aphids, notes, 50. 



growth as affected by excess of mois- 

 ture, 820. 



growth as affected by oxysen supply, 

 132. 



growth as affecting activity of soil 

 organisms, N..I., 28. 



habit, experimental modification, 1.34. 



habit in the far North, 634. 



maggot treatment, new, 250. 



nematodes, control, 660, 84t) ; Fla., 

 548; N.J., 50. 



nodules. (See Nodule production.) 



systems, charting, quadrat-bisect 

 method, 827. 



sj'Stems, ecology of, 327. 

 Root crops — 



culture experiments, Mich., 636. 



culture experiments in Ontario, 333. 



culture experiments in Philippines, 

 650. 



effect on following crop, 228, 229. 



storage. 111., 834. 



variety tests, Mich., 636 ; Nev., 227. 



(See also special crops.) 

 Roots — 



natural grafting, 522. 



of various plants, ash constituents, 

 502. 



of Vicia faha, resistance to electric 

 current, 725. 

 Rope — 



manila, strength requirements, 884. 



wire, determining stresses, 584. 

 Rosacea} Important as food plants, 729. 

 Rose — 



blotch fungus, life history, 658. 



chafer, notes. Conn. State, 159. 



leaf-hopper, studies. 848. 



leaf-tyer, notes, Conn. State, 159. 



mallow, Insects affecting, 549. 



midge, studies, U.S.D.A., 165. 

 Roselle, insects affecting, 661. 

 Roses — 



annual, 242. 



breeding experiments. 742. 



Chinese, collected by Meyer, 742. 



culture and variety tests, N..T., 41. 



fragrance, 742. 



mildew-resistant, 242. 



pillar, new, 242. 



variety tests, 742. 

 Rotation — 



fertilizer experiments, N.Y.Cornell, 21. 



of crops, 228; Del., 136: Kan^., 32. 

 41 ; Mo.. 644 ; N.Dak.. 139, 822 ; 

 R.I., 135. 434. 



of crops for Ohio, Ohio. 136, 529. 



of crops in dry farming, Mont., 29. 



of crops, legumes in, N..T., 19. 



of crops, treatise, 730. 



of crops under irrigation, Nebr., 433. 



plats, cake and corn feeding on, 826. 

 Boop in New Jersey, N.J., 881. 



Rowen — 



for dairy cows, Mass., 276. 



in the rotation, R.I., 434. 

 Rubber — 



and latex from upper and lower cut, 

 152. 



hrown bast, notes, 6.50. 



canker, black-stripe, notes, 659. 



canker, treatment, 449. 



Castilla, culture and tapping, 839. 



chemistry of. progress, 614. 



collar rot, studies, 546. 



colloid chemistry of, 310, 801. 



culture experiments, 242, 745. 



fertilizer experiments, 817. 



field experimentation, methods, 541. 



girth and yield correlation, 653. 



industry, scientific methods in, 118. 



insects affecting, 455. 



latex, specific gravity and lubber con- 

 tent, relation, 542. 



laticiferous vessels, structure, 150, 541, 



leaf disease, notes, 841. 



lightning injury, 245. 



of Dutch East Indies, variation in 

 samples, 542. 



peculiarities of individual trees, 653. 



Phytophthora disease, 55. 



plants producing, 345. 



renewing bark as affected by preserva- 

 tives, 542. 



seed, germination and preservation, 

 449, 541. 



.selection, 150, 653. 



soils. Mala.van, 319. 



synthesis, 10. 



tapping experiments, 151, 242, 542, 

 745. 



thinning, 150, 653. 



trees, wound healing, 449. 



yields, variation in, 653. 

 Run-off — 



as affected by cropping and cultivation, 

 622. 



investigations on Third Creek, N.C., 

 686. 



on a Florida drainage area, 686. 

 Rural — 



church In reconstruction, 387. 



church problems in Texas. 591. 



communities, child caring work in. 890. 



communities, nursing and social serv- 

 ice needs, 890. 



community center movement in Can- 

 ada, 495. 



conditions affecting maternity and in- 

 fant care, 794. 



credit. (See Agricultural credit.) 



depopulation and absenteeism in Spain, 

 890. 



economics, principles of, 92. 



economics, research aspects. 701. 



economy of France, 490. 



industries in Great Britain, 490. 



industries, treatises, 506, 592. 



labor. (See Agricultural labor.) 



leadership register, 897. 



