994 



EXPERIMENT STATION RECORD. 



[Vol. 40 



Sugar cane — Continued. Page. 



froghopper, notes 261, 856 



frost protection and frost dam- 

 age 442 



frosted, preventing decomposi- 

 tion 634 



growing for sirup, U.S.D.A 830 



growth measurements 326 



Indian, classification-— 635,829,830 



inheritance in 241 



insects affecting 57, 854 



irrigation experiments 230 



Japanese, culture experiments, 



Tex 729 



Japanese, culture in Philippines. 231 



juice, clarification 510 



juice, role of oxidases and iron 



in color changes 12 



leaf-hoppers in Hawaii 854 



leaf spot, studies 848 



liming experiments 38 



mottling disease, resistant va- 

 riety 848 



mutation In 634 



nematode injury, U.S.D.A 157 



oxidases of 42''. 



planting dates in Argentina 441 



planting experiments. 38, 532, 634, 635 



ratooning experiments 38 



seed, from different sources 37 



selection experiments 523 



thick r. thin, for planting 



varieties 38, " 



varieties in Dutch East Indies. 81 



varieties in Hawaiian Islands.. 634 



varieties, Indian 635, 820, 830 



varieties, Philippine 220 



variety, disease-resistant M s 



variety tests :::. 



228, 230, 281, 242, 832, 441, 



625, 633, 634, 823, 828 

 Sugars — - 



aldehyde, determination 114 



autooxidation 113 



nonfermentable, of molasses 313 



preparation from other sugars of 



fewer carbon atoms 110 



• reducing, determination. 114, 312, 613 

 1 8ee also Glucose, Sucrose, 

 etc.) 

 Sulphate — 



of ammonia. (See Ammonium 



sulphate.) 

 of potash. (See Potassium sul- 

 phate.) 

 Sulphates — 



determination 113 



inorganic, role in nutrition 71 



Bolpblon, volumetric estimation 409 



Sulphur — 



effect on rock phosphate 128 



Fertilising value 128,440 



mixtures. (Bee T.lmo-sulphur 

 mlxtan 



nutrition of plants, Ark 7L'i; 



requirement of red clover 727 



sprays, preparation and use 59 



Sulphur — Continued. Page, 

 trioxid of feeding stuffs, digesti- 

 bility, Tex 770 



Sulphuric acid — 



content of snow and rain 314 



creamery-waste, superphosphate 



from 16 



determination in presence of 



phosphates 13 



industry in Great Britain 816 



manufacture 815 



Summer sores, etiology and treat- 

 ment 686 



Summers, warm and cold 716 



Sun spots and climate, correlations, 



D.S.D.A 410 



Sunflower — 



fly, notes 169 



seed. Swedish, studies 533 



silage, analyses and use, Mont.. 470 



silage, studies, U.S.D.A 331 



stems, utilization 24J 



Sunflowers — 



as forage crop 242 



as silage crop, IS DA 332,431 



as soiling and silage crop, Mont. 429 



eulture experiments 230 



hybrid 728 



sclerotlnla fllfBW 49 



yield of stover. Wash 731 



Sunlight, formation of nitrites by in 



aqueous solution AM 



Superior Council of Agronomic Sta- 

 tions and Laboratories in France. 99 



Superphosphate — 



effect on decomposition of soy 



bean fodder 214 



fertilizing value, Mo 218 



fertilizing value, Mont 428 



fertilizing value. Pa 723 



fertilising value, Tex 515 



(See also Phosphates, com- 

 parison.) 



niter cake 221,515 



of ammonia, new fertilizer 127 



preparation 725, 801 



preparation with creamery waste 



sulphuric acid 16 



Swamp — 



reclaimed, fodder crops on 231 



rose mallow, insects affecting.. 754 

 soils, vegetation as indicator of 



quality 718 



waters, effect on plants and bio- 

 colloids 520 



Swampy meadows, water table -11 



Swedes — 



culture experiments 625 



culture experiments, Mich 731 



culture in Antigua 522 



culture in South Dakota. S.Dak. 82 



effect on following crop, R.I 



feeding value. Can 768 



relative yielding capacity 628 



roots, decomposition In soil 214 



yields, Minn 7 



yields, Wash 730 



