996 



EXPERIMENT STATIO:Nr RECORD. 



[Vol.43 



Sulphur — Continued, 

 metabolism, 663. 



mixtures. («S'ec Lime-sulphur mix- 

 tures.) 

 relation to soil fertility, 111., 517. 

 value on swamps, Oreg., 22. 

 Sulphur-arsenate, fungicidal value, 3.52. 

 Sulphuration, as treatment for mange, 184. 

 Sulphurous acids, effect on sugar beet juice, 



207. 

 Sumac — 



diseases, new, in Italy, 49. 

 leaves, reddening of, 49. 

 Sun as source of power, U.S.D.A., 117. 

 Sunflower — 



ashes, analyses, 324. 



silage and alfalfa hay, comparison, 



Mont., 68. 

 silage as poultry feed, Minn., 674. 

 silage, composition and digestibility, 



Mont., 69, 770. 

 silage, feeding value, Mich., 677 ; 

 Mont, 68. 

 Sunflowers — 



as forage crop, 527. 



as silage crop, Minn., 636 ; U.S.D.A., 



435. 

 culture, 638. 



culture experiments, Mont., 35. 

 Russian, as silage crop, Nev., 229. 

 wild, as silage crop, 677. 

 Sunlight — 



effect on blister rust fungus. Can., 



754. 

 role in forest insect control, 560. 

 Sunshine — 



and cloudiness in Canal Zone, 



U.S.D.A., 718. 

 geographic distribution in United States, 



U.S.D.A., 116. 

 variation in California, U.S.D.A., 509. 

 Superphosphate — 



effect of pulverized limestone on, 27. 

 effect on composition of soil extracts, 



Mich., 124. 

 effect on tobacco root rot, 447. 

 fertilizing value, Tex., 33, 37; Wis., 

 336. 



(See also Phosphates, comparison.) 

 production, 629. 



production on the farm, Ky., 324. 

 reverted, fertilizing value, 428. 

 V. phosphatic slag, Ohio, 324. 

 Surgery and medicine, industrial, 564. 

 Surra in camels, treatment, 584. 

 Swamp fever — 



in horses, N.Dak., 386. 

 studies, Wyo., 179. 

 (See also Anemia, infectious equine.) 

 Swamps — 



peat, reclamation, Oreg., 21. 

 reclamation, use of tractors in, 484. 

 Sweating, effect on hemoglobin and pro- 

 tein content of blood, 265. 

 Swede — 



diseases, notes, 45. 

 dry rot, studies, 244. 



627. 



738; 



332. 

 640. 

 studies, 



sheep. 



Swede — Continued. 



juice, raw, antiscorbutic value, 667. 



juice, vitamin C a-s affected by heat, 

 567. 

 .Swedes — 



analyses, 63. 



as affected by potassium salts, 630. 



as affected by sodium chlorid, 630. 



as forage crops in Denmark, 177. 



culture on peat soil, 23. 



fertilizer experiments, Minn., 627. 



manuring experiments, Minn. 

 Swedes, yields, Minn., 824. 

 Sweet clover — 



as dry-farm crop, Ariz., 733. 



as hay and forage, 527. 



culture, Nebr., 637. 



culture experiments, Idaho, 

 Mont., 332. 



fertilizer experiments, Ky., 331. 



pollination studies, 640. 



rotation experiments, N.Dak., 



seed coats, studies, U.S.D.A., 



seed production, pollination 

 U.S.D.A., 640. 



seed screenings, effect on 

 U.S.D.A., 464. 



seeding experiments, Okla., 33. 

 Sweet corn — 



canning, Ind., 34. 



disease-freo seed selection, Ind., 34. 



root-rot, studies, Ind., 345. 



seed production, Md., 133. 



seed selection, Ind., 339. 



variety tests, U.S.D.A., 437. 

 Sweet — 



gum trees, time for transplanting, 

 Mo., 142. 



peas, culture, treatise, 441. 

 Sweet potato — 



diseases, 152, 243. 



gall disease, 151, 152. 



surface rot, control, 752. 



potato weevil, control, 258 ; Ala. Col., 

 57. 



worm, notes, 252. 

 Sweet potatoes — 



breeding experiments, 637. 



culture, N.J., 140. 



fertilizer experiments, 637 ; Fla., 335 ; 

 Ga., 139. 



grades, U.S.D.A., 336. 



insects affecting, 450. 



Rhynchophora on, 163. 



rotation experiments, FLi., 335. 



storage, N.J., 140. 



storage and marketing, 243. 



storage tests, Ga., 140. 



V. cassava meal for pigs, 71. 



variety tests, U.S.D.A., 330. 

 Swtetenia cirrhata n. sp., description, 241. 

 Swietenla species, revision, 241. 

 Swine — 



breeding, seasonal distribution, 377. 



diseases, Ind., 384. 



diseases affecting reproduction, 683. 



dysentery, notes, Ind., 385, 



