1920] 



INDEX OF SUBJECTS. 



987 



Rye — Continued. 



straw, diRestibility, 569. 



straw, hydrolyzed, digestion, coeffi- 

 cients, 267. 



varieties, N.C., 434. 



variety tests, 231. 232, 528 ; Can.. 735 ; 

 Minn., 823 ; N. Dais., 3:52 ; Oltla., 32. 



wheat nematode attacking. 751. 



winter, culture experiments, Mont., 

 332. 



winter, seeding experiments, Minn., 

 823. 



yield in Australia, 528. 

 Saccharin — 



In foods, determination, 115. 



tablets, chemical changes in, 12. 



use of, N.Dak., 368. 

 Saffron, culture in Macedonia, 746. 

 Sailors. (See Service men.) 

 Sal— 



as affected by badly aerated soils, 448. 



natural reproduction, 543. 



root rot Inoculations, 652. 



seedlings, growth of, 543. 

 Salad plants, culture on seashores. 523. 

 Salads, substitutes in Germany, 204. 

 Salep, mannan of, utilization, 366. 

 Salt- 

 impurities, effects on fish salting. 663. 



in poison bait for grasshoppers, 354. 



metabolism, as affected by high alti- 

 tudes, 566. 



rock, effect on live stumps, 281. 

 Saltpeter. (See Potassium nitrate and So- 

 dium nitrate.) 

 Salts — 



antagonistic, effects on respiration of 

 organisms, 820. 



crude mixed, potash content, 26. 



double, equilibrium concentration, 25. 



from evaporation of soil extract. 625. 

 Salvarsan. disinfecting power, 79. 

 San Jos6 scale — 



control, Ohio, 356. 



notes. Mo., 758. 

 Sanbornia juniperi, n.g. and n.sp., U.S.D.A., 



758. 

 Sand — 



covering for peat bogs, 23. 



dunes, ash of plants from, 431. 



dunes, forestatlon methods, 651. 



effect on reaction of nutrient solu- 

 tions, 210. 



hills of Kansas, studies, 731. 



horizontal pressure, 889. 



wet, angle of repose, 122. 

 Sandal spike disease, 448. 

 Sannlnoidea exitloaa. (See Peach borer.) 

 Sap. (See Osmotic pressure.) 

 Saperda Candida. (See Apple-tree borer, 



round-headed.) 

 Saponin, value in lime-sulphur wash, 340. 

 Sarcocystis tenella, studies, Wyo., 786. 

 Sarcopaylla gaUln<ic€w, notes, Okla., 587. 

 Barooptes scahiei stiis, notes, r.S.D..\., 088. 

 Sardines, bacteriology. 111. 

 Sauce, Indochinese fish, condensed, 458. 



Sauerkraut production controlled by heat, 



616. 

 Sawflies, differentiation, U.S.D.A., 363. 

 Sawflj' — 



black grain-stem of Europe, U.S.D.A., 

 363. 



western grass-stem, studies, U.S.D.A., 

 259. 

 Scabies. (See Hog, Horse and Mule 



mange, and Cattle and Sheep scab.) 

 Scale insects — 



affecting mango in Florida, 54. 



of Santa Cruz Peninsula, lists, 851. 



(See also specifto insects.) 

 Scalecide, fungicidal value, Mass., 155. 

 Scapteriscus — 



didactj/lus, notes, 53. 



vicintis, notes, 159. 

 ScMstocerca spp., life history, 159. 

 SchoenoMus Upun-ctifer, notes, 52. 

 School — 



districts, rural, social surveys of, 598. 



gardening hints, 797. 



gardening in Los Angeles, 795. 

 (See also Gardening.) 



gardens, value, 796, 898. 



lunch project, 663. 

 Schools — 



agricultural. (See Agricultural 

 schools.) 



elementary, lessons on food values, 97. 



home economics, administration, 494. 



rural, arithmetic problems for, 495. 



rural, conditions in Ohio, 898. 



rural, consolidation, 297. 



rural, reorganization, U.S.D.A., 492. 



vocational. (See Vocational schools.) 

 Scientific institutions, research spirit in, 



Texas, 496. 

 Scientists, Government, conditions of serv- 

 ice, 798. 

 Sclerospora pJHIippiiiensi.s n. sp., descrip- 

 tion, 545. 

 Sclerotinia fruit rot on tomato, Md., 151. 

 Sclerotin ia — 



Ubertiana on greenhouse lettuce, Ky., 

 845. 



libertiwna, studies, 247. 



ricini, n. sp., description, 849. 



sp. on tomato, 154. 



spp., notes, 152, 246. 



trifoUorum, notes, 46. 

 Sclerotium sp. on ca.stor bean, 45. 

 Scnlia manila, notes, 52. 

 Screen wire, durability tests. Wyo., 189. 

 Screenings, recleaned, feeding value, 774. 

 Scrophulariacese, specialization of Perono- 



spora on, 247. 

 Scurvy — 



among troops in Mesopotamia, 262, 263. 



beading of ribs in, 369. 



infantile, studies, 667. 



studies, 461, 567, 568. 



(See also Vitamin C.) 

 Seaweed, gi'ound, fertilizing value, Can., 



727. 

 Secretin, effect on metabolism, 369. 



