INDEX OF SUBJECTS. 



983 



Page. 



Potassic superphosphate , fertilizing value 530 



Potassium — 



bichromate as a millr preservative 677 



effect on plants 131 



bisulphate, use in manufacture of super- 

 phosphates 627 



carbonate, effect on germination of dodder 28 



chlorid, fertilizing value 234 



cyanid as a larvicide 452 



determination as platinic chlorid 409 



in minerals 805 



soils 109 



nitrate, effect on germination of dodder. . 28 



deposit in New Mexico, U.S.D. A. 127 



occurrence ia plants 26 



oxalate, effect on starch ferments 109 



permanganate, effect on sweet peas 621 



phosphate, fertilizing value 342 



platinic chlorid, reduction 409 



relation to carbohydrate formation and 



decomposition 635 



salts, effect on ammonia-flxing power of 



soils 323 



floccu latlng power on clay 620 



soil, studies 500 



Potato- 

 bacterial rot, notes 248 



beetle, Colorado, remedies, U.S.D. A 161 



black wart, notes, U.S.D. A 245 



blight, treatment. Can 735 



culture clubs in Idaho 395 



diggers, descriptions 191 



tests 589 



diseases, investigations 446 



notes 1.50, 650 



review of literature 246 



treatment 151 



Can 334 



flakes, analyses 872 



fungi, infection experiments with 247 



greens as stock food 775 



late blight, factors affecting germination 



and Infection 151 



notes 763 



studies and bibliography, 



U.S.D.A 544 



treatment 446, 748 



varieties resistant to 35 



leaf-roll, inheritance 150 



notes 247 



sturlies 351, 447, 650 



moths, notes 456 



scab, investigations 248 



relation to higher bacteria 650 



treatment, Can 349 



sorters, tests 589 



tops, drying 775 



tuber worm, life history and remedies. . . 57 



notes 53 



wart disease, studies 351 



Potatoes — 



analyses 570 



bud mutations 230 



catalytic fertilizers for 629 



classification of varieties 31 



continuous culture, Can 734 



Page. 

 Potatoes — Continued. 



culture 196 



Mich 738 



Mo 337 



Utah 298 



experiments 638, 833 



Can 335,735 



N.Mex 430 



desiccated, use 210 



desiccation 210 



determination of disease resistance in, 



U.S.D.A 545 



diseased, examination 207 



distribution of Fusaria on 247 



electroculture experiments 231 



fertilizer experiments .32, 125, 321, 421, 



422, 530, 626, 628, 629, 724 



Ind 324 



Mich 137 



growth in acetylene gas 827 



hypertrophy structure in 151 



inheritance of high starch content 500 



internal spotting. Can 349 



Irrigation experiments 531 



microscopic tests 341 



phosphorus content 461 



protection against frost 421 



rate of seeding tests. Can 335 



spraying experiments, N.Y.Statc 237, 738 



studies for schools 196 



treatment with formaldehyde 650 



tuber formation in 224 



varieties 32,35,530,531,532,833 



Can 334, 637, 736 



resistant to late bUght 35 



whole V. cut for planting 638 



Poterium canadensc, analyses. Can 371 



Poudrette, fertilizing value 337 



Poultry- 

 appliances, construction, N.J 773 



associations, notes 400 



barred breeds, history 72 



clubs for girls 395 



cost of cold storage, U.S.D.A 164 



diseases, prevention and treatment, 



U.S.D.A 585 



dressed, handling 62 



experiments. Can 374,773 



feeding experiments, N.C 279 



grading. Can 374 



heredity in 870 



house, colony, description 892 



houses, construction 793 



Iowa 793 



N.J 773 



descriptions 89 



Ind 374 



N.C 279 



husbandry, papers on 675 



industry in Egypt 472 



Scotland 279 



instructors and investigators, interna- 

 tional association 106 



nlanagement 279 



NJ 773 



origin and history of breeds 572 



