1918] 



I2TDEX Ui>' SUBJECTS. 



991 



Sugar beet — Continued. Page. 

 pulp. (See Beet pulp.) 



residues as cattle feed 36S 



root louse, control by irrigation, 



U.S.D.A 130 



seed industry in Prance 537 



tops and leaves, feeding value, 



Cal 168 



■webworm, life history 562 



Sugar beets — 



analyses. Can 634 



culture experiments 536 



culture experiments, Can 634 



culture experiments, S.Dak 341 



culture in Algeria 237 



culture in South Africa 536 



ensiling, U.S.D.A 130 



fertilizer experiments, Can 634 



increase in sucrose content after 



removal from soil 530 



irrigation experiments, Utah 320 



methods of analysis 536 



relation between size and sugar 



content 729 



rotation experiments, U.S.D.A 129 



saccharose of : 26 



varieties 237, 536 



varieties. Can 634 



varieties. N.Mex 634 



varieties, S.Dak 341 



Sugar cane — 



beetle, life history and remedies, 



U.S.D.A 263 



breeding experiments 520 



changes in after cutting 637 



culture experiments 230, 



336, 337, 433, 526, 527 



culture in Hawaii 537 



culture in India 130 



disease, new, in Porto Rico 150, 852 



diseases and pests in Philip- 

 pines 550 



diseases in Hawaii 549 



diseases in Porto Rico 851 



diseases, notes 352 



fertilizer experiments 135, 



220, 229, 337, 433, 437, 516 



froghopper in Grenada 158 



green manuring 220 



insects aflfecting 459 



Japanese, culture experiments, 



Hawaii 827, 829 



Japanese, culture in eastern 



Oregon, U.S.D.A 432 



Lahaina disease, studies 549, 550 



leaf-hopper, studies 462 



lightning injury 250 



moth borers affecting 465 



pineapple disease, notes 350 



red rot, treatment 647 



roots, action of arsenates on 238 



sclerotial diseases, notes 351 



selection experiments 433 



smut, treatment 647 



varieties 135, 



136, 229, 230, 336. 337, 433, 437. 537 

 white grubs affecting 161, 767 



Sugar cane — Continued. Page, 



wireworm, investigations 163 



Sugi, fertilizer experiments 624 



Sulphate of ammonia. {See Ammo- 

 nium sulphate.) 



Sulphates in rain and snow 416 



Sulphid, effect on cement 691 



Sulphur — 



compounds, injury to grape- 

 vines 853 



conservation in soils 327 



dioxid, determination 10 



dioxid, insecticidal value 458 



effect on crops and soils, 



U.S.D.A 221 



effect on fermentation of 



manure 19 



fertilizing value 726 



metabolism in dogs 570 



powdered, as a fungicide 848 



Sulphuric acid — 



effect on soil organisms, Vt 420 



manufacture, Vt 423 



Sun — 



Brester's theory, U.S.D.A 511 



spots, effect on tree growth 415 



spots, magnetic storms, and 



rainfall, U.S.D.A Sll 



spots, periodicity, U.S.D.A 812 



spots, relation to climate 114 



{See also Solar.) 



Sunflower pith and stems, utiliza- 

 tion 207 



Sunflowers- — 



as a silage crop 74 



as a source of potash 207 



culture for chicken feed, Hawaii 827 



for dairy cows, Mont 369 



Sunlight — 



and moonlight, relation, 



U.S.D.A 811 



intensity, method for approxi- 

 mating 629 



recorders, comparison, U.S.D.A- 210 



Sunn hemp — 



as a green manure 220 



culture experiments 336 



Sunshine. (See Sunlight.) 



Superphosphate — 



effect on fermentation of manure 19 

 effect on nitrogen content of 



soil, Tenn 213 



effect on soil acidity, U.S.D.A— 620 



fertilizing value 230, 233, 519, 817 



fertilizing value. Can 634 



fertilizing value, Minn 825 



fertilizing value. Mo 619 



fertilizing value, Ohio 326, 625 



fertilizing value, S.C 534 



fertilizing value, Tex 325 



feitilizing value, U.S.D.A 131 



reversion 122 



solubility In mineral and organic 



acids 423' 



use in war time, Ohio 723 



use on peat soils, 132, 433 



Swallows, food habits, U.S.D.A 856 



