18 DEPARTMENT OF AGRICULTURE BULS. 1026-1050. 



Bulletin No. Page. 



Sirup, sweet potato, manufacture 1041 6, 33 



Smut, citrus, cause by citrophilus mealybug 1040 3 



Soapweed, feeding to cows on range 1031 69-70 



Sodium — 



carbonate and bicarbonate, timber preservation experiments. 1037 35-36 



fiuorid, timber preservation experiments 1037 36-37 



sulphate, spray for avocado red spider, experiment 1035 12 



Soil, Pierre clay, nature and occurrence in South Dakota 1039 4 



Soiling crop, sunflowers, value 1045 29 



Soils, Colorado, Cache la Poudre Valley, descriptions 1026 5-6 



Sorghums, grain, growing — • 



experiments. Belle Fourche Farm 1039 40-41, 71 



on dry land, experiments in South Dakota 1039 40-41 



Sorgo, silage yields, comparison with sunflower 1045 18- 



South— 



agricultural problems, business analysis of farms in southern 



Georgia 1034 3-97 



Dakota — ■ 



Belle Fourche Experiment Farm, climatic conditions 1039 4-11 



Custer County game refuge, description and work 1049 47 



hail insurance on crops 1043 1& 



loan of State funds to farmers 1047 23 



Newell, climatic conditions, 190S-1919 1039 5-11, 70 



Newell, experiments with cereals at Belle Fourche Ex- 

 periment Farm, bulletin by John H. Martin 1039 1-72 



Wind Cave National Park, purchase and cost 1049 45, 46 



Southwest, range and cattle management during drought condi- 

 tions 1031 4-84 



Spelt, growing in South Dakota, experiments 1039 36, 60 



Spider, red avocado — 



bulletin by G. F. Mozette 1035 1-15 



economic importance 1035 1-2 



life history and biological data 1035 4-9' 



nature of injury by, host plants, distribution, etc 1034 2-4 



Spike disease — 



description, occurrence, etc., studies 1038 7-8 



pecan tree, description 1038 7-8 



Spinning, tests of sea-island and Meade cottons 1030 20-22, 24 



Spoilage, grocery stock in self-ser\'ice stores 1044 38-39 



Spokes, vehicle, treatment of green timber for prevention of sap- 

 stain and mold 1037 38-45 



Spraying- 

 apparatus— 



description 1032|2^^^' ^^ 



for avocado groves 1035 13 



avocado red spider, experiments 1035 11-13 



citrus orchards for control of mealybugs 1040-| "^" ' -.X 



cranberry bogs for control of blackhead fireworm 1032 34—41 



Sprays — 



f22-28, 33, 



cranberrv, formulas and use 1032 j 34-35, 39- 



I 41 



mealybug, control on citrus, formulas, and cost 1040 13-16, 18 



poisonous — 



metal deposits on fruits and vegetables 1027 18-49 



residues on fruits and vegetables, investigations 1027 1-4& 



Stains — 



chemical, of wood, description, causes, and injuries 1037 4—6 



fungus, source in sap-stain fungi in woods 1037 6-10 



Starch — 



content, sweet-potato, variation 1041 5 



sweet-potato, manufacture 1041 6, 33 



State funds, farm mortgage loans, systems « 10,47 5 



Steaming, lumber, for fungi control, experiments 1037 28-32, 51 



