INDEX OF SUBJECTS. 



887 



I'age. 



Poa abyssinica , anal j'ses .''>t)4 



Podisus placidus, notes, N.ll 7o9 



Podosphara Icucolricha, notes 50 



oiyacantha', notes (J43 



Poison weed prolileni in the West 178 



Poisons, distribution in mushrooms G29 



elTeet on plant cells 423 



Polarimeter observations, U.S.D. A 525 



Polarization an<i sawharinietry, treatise Oil 



Polenske test, value 13 



Polenta , analyses 303 



Poles, consumption in the I'nited States 444 



Pollen, distribution by wind, Oreg 030 



Polychrosis vilcana. (See Grape berry moth.) 



Polygnotus parasite, notes 452 



Polygonum, betain content 30 



Polygraphus, new species, description 247 



Polypeza sp., notes, U.S.D. A 559 



Pulyporus spp., notes, U.S.D. A 448 



Pulyxtictus itrsicolnr, notes, U.S.D. A 448 



PoJystigma ochraceum, notes 245 



Pomelo root disease, notes 344 



Pomology at ( ieisenheim 038 



instruction in OflO 



Pond mud , analyses 310 



Pontotoc County, Miss., soil survey, U.S.1)..\ oi.s 



Poor in the slums, betterment 304 



Poplar canker, notes 045 



Poplars, mycorrhiza: on 345 



Poppies, breeding 543 



experiments 28 



culture 332 



Poppy oil , reaction 012 



seed cake, analyses 008 



effect on milk 174 



Population, Mendelian, ancestral gametic 



correlations in 771 



Populus grandidcntata, mycorrhizip on 345 



Pork-cheese, poisoning of irian by 80 



composition as ati'ected by feeds 173 



product ion , cost, Colo 371 



in Mississippi, Miss 398 



peas for, Miss 74 



Porocephahts moniliformis, studies 287 



I'ort inspection work, review 05 



Porlhetria dispar. (Sf( Oipsy moth.) 



Porto Rico College, notes 095 



Station, notes 97,499,095 



Post horse service in France 371 



Potash- 

 absorption by .soils 19 



assimilation by plants 722 



content of nitrogenous substances 721 



deposits, ammonia and nitrates in 721 



development 720 



in north Chile 721 



Upper A Isace 223, 721 



determination as phosphomolybdate. . . . 520 



in potassic rocks 410 



potassium fertilizers. . . 703 



soils 209,520 



distribution in cultivated soils 715 



effect on ajjples. Pa 237 



composition of plants 220 



growth of cereals, R.I 224 



forest seedlings 221 



plants 132 



Potash- Continued. Page. 



fertilizers, analyses. 122 



comparison 443 



N.Y. Cornell 420 



fertihzing value 23,120,122,231,541,021 



Can 312 



Ky 330 



Miss 329 



R.I 212 



S.C 429 



Tex. 545 



lo-ss of, in commercial fertilizers 223 



removal by streams 122 



requirements of clay soils, N.II 714 



salts. (See Potassium salts.) 



silicate, availibility 25 



solubility as affected liy .soils, N.II 715 



in vestigat ions 721 



N.II.. 715 



tests in mixed ferl ilizers 520 



Potassium- 

 acetate, effect on ripening of dates 728 



and sodium, similarity in behavior 027 



carbonate from kelp, notes 223 



chlorid, effect on Bacillus subliiis 027 



phosi)hate, reaction with soils, N.II 714 



role of, in plants 29 



salts, analyses 024 



R.I 212 



discovery in Alsace 122 



effect on color in plants 027 



fertilizing value 23, 120, 122, 539 



industry in Germany 223 



notes 223,310 



physiological effects 307 



preparation from seaweed ash 122 



reaction with soils, N.II 713 



use in France 720 



sulphate, effect on yeast 000, 001 



Potato — 



beetle, Colorado, spread 559 



remedies, Minn 137 



blight, effect on composition of potatoes. . 447 



notes, Colo 145 



prevalence in Ireland 740 



treatment 747 



Me 424 



digger, description 87 



diseases, notes 50,243, 447,740 



Colo 4.30 



Me 144 



Minn 137 



treatment, Vt 549 



dry rot, notes 043 



drying apparatus, description 380 



industry in Germany, yearbook. . 480 



flakes for pigs 173,371 



Fusarium disease, notes 744 



growers' field meeting, Ohio 233 



industry in the I'nited States, U.S. I). A . (i32 



Colorado, Colo 430 



leaf curl, effect on yiehl of])olatoes 243 



investigations 243 



moth , notes 450 



rot , treatment 747 



scab as affected by liming, Me 145 



notes 242, 450, 055 



treatment 51 



