1917] 



INDEX OP SUBJECTS. 



975 



Rubber— Continued. Page. 



from Eucommia ulmoides 417 



Hevea. (See Rubber, Para.) 



industry, treatise 347 



inner qualities, factors affecting 347 



latex, natural coagulation 806 



leaf disease, notes 838 



Para, black thread disease 757 



Para, cortex nodules 727 



Para, latex vessels in 147 



Para, natural accelerator 512 



Para, oil of 109 



Para, seed selection 837 



Para, tapping during winter 838 



plantatiou, of Ceylon 347 



quality in relation to age of trees 651 



root disease, notes 458, 839 



soUs in Fiji 83S 



stem disease, notes 453 



tapping experiments 117,347 



tapping experiments, probable error in . . 837 



tapping wounds, cicatrization 548 



Rubus — 



orange rusts, studies 457 



pollen sterility in 131 



Bumex acetosella, description and eradication, 



Ind 239 



Rural- 

 attitudes, theory of 491 



conditions in Alabama 91 



credit. (S« Agricultural credit. I 



decline in New England 593 



education associations in Saskatchewan. . 394 

 education conference at Worcester, Massa- 

 chusetts 892 



electric service in Wisconsin 189 



extension schools in Ireland 294 



homes, numbering 889 



leadership, development 593 



ife and education, progress in 393 



market conditions in New York 790 



migration, causes 390 



sanitation in the Tropics, treatise 86 



sanitation notes 592,695 



schoo 3. (See Schools, rural.; 



Fociology, teaching 93,794 



surveys in Iowa 592 



surveys, methods 592 



Rusts— 



endophyllum-tike, o Porto Rico 552 



studies, Mo 749 



(See aUo Com, Wheat, etc.) 



Rutabagas. (See Swedes.) 



Rye— 



and wheat hybrid, heredity in 432 



as affected by greenhouse temperature ... 533 



bran, analyses. Wis 471 



— bread, recipes, U.S. D.A 364 



breedin_, experimeuts 827 



bush i weights S89 



culture, Iowa 73 j 



culture experiments 435,823 



cultur ' under dry farming, N.Mex ^29 



.ertillzer experiments 436, 823 



grass, branching in heads 139 



grass, poUination experiments 735 



green manuring experiments, N.J 425 



middlings, analyses. Conn. State 268 



Rye — Continued. 



middlings, analyses, Wis 471 



pedigreed, yields in Wisconsin 438 



Roson 799 



rust, specialization 149 



seeding experiments 733 



seeding experiments, Minn 226 



shorts, analyses. Wis 471 



thrashing injuries 534 



varieties 135, 436, 438, 823 



varieties, Hawaii 132 



varieties, Idaho 29 



varieties. 111 641 



varieties, Oreg 530 



varieties, Tex 330 



variety from mountain regions of Italy. . 539 



volume weight and grain cliaraeteristics . . 643 



Sablefish, food value 165 



Saccharin, determination in food products ... 804 



Saccharum spontaneum for shifting sands 333 



SafBower, culture for seed 230 



Sailors, land settlement for 190 



Salad plants, treatise 645 



Salix, hybridization experiments 432 



Salt— 



fertUizing value. Me 636 



glycosuria, mechanism 64 



River national bird reservation 355 



trough tor sheep, description, Tex 867 



Saltpeter — 



Chile. (See Sodium nitrate.) 



origin and extraction in India 722 



Salts- 

 antagonism 431 



reactions of ions and molecules 201 



Saltusaphis, synopsis 157 



Salvarsan, use in dog distemper 584 



Salvia nemorosa, root system 542 



Sampling device for organic materials 711 



San Jos6 scale — 



control in Kansas 357 



notes, Tex 358 



remedies 54 



Sand dunes, devastation by 720 



Sands — 



grading for road construction, U.S.D.A.. 787 



organic impurities, test for 490 



shifting, grasses for 333 



Sanninoidea ezitiosa. (See Peach borer.) 

 Sap- 

 ascent in plants, tension hypothesis 128 



of desert plants 630 



of plants in mountain and desert habi- 

 tats 525 



Saperda Candida. (See Apple-tree borer, 

 round-headed.) 



Saponin from Yucca ftlamentosa 9 



Sarcocystis tenella, Infestation of lambs by, 



Wyo 374 



Sarcophaga and allies in North America 160 



Sarcophaga — 



caridei, parasitic on locusts 357 



hxmorrhoidalia larvte in human intes- 

 tine 853 



Sarcosporidia, zoological position 53 



Sarcosporidiosis, bovine, in Portugal 81 



Sauerkraut, fermentation 165,208,806 



Sausage, determination of added water 414 



