984 



EXPERIMENT STATION EECORD. 



Page. 

 Populus vancouveriana n.sp., de- 

 scription 336 



Pork fat, digestion and absorption — 257 

 Porofiarjrotis ortliogonia, poisoned 



bait for 358 



I'onicondylariae of New York 752 



Porthetria dispar. (See Gipsy 

 moth.) 



Posts, preservation, Iowa 153 



Potash — 



brines, evaporation 425 



deposits in Texas 26 



fertilizer experiments, review — 821 



fertilizing value, S.C 513 



fixation by soil bacteria 815 



for cranberries, N..T 150 



for roses, N.J 143 



from copper and gold ores 425 



from feldspatic rock 27 



from seaweed 26 



from wood and plant ashes 425 



in soils, liberation, S.C 519 



lakes and deposits as a source 



of potash 327 



long-continued use. Pa 128 



of silicates, solubility 328 



salts, fertilizing value 519 



salts for meadow soils 22 



salts, replacing with sodium 



chlorld 726 



{See also Potassium salts.) 



sources of 327 



sources of, S.C 519 



sources of in America S21 



substitutes for 327 



supply, Ohio 494 



use in agriculture 27 



waste liquor lime, fertilizing 



value 26 



works waste products, fertiliz- 

 ing value 328 



world's supply 724 



Potassium — 



acid phthalate In acldiraetry 



and alkalimetry 408 



adsorption by soils 817 



chlorid for cranberries. N.J 150 



cyanld, effect on permeability of 



vegetable plasma membrase 333 



determination 503 



ferrocyanid, fertilizing value 27 



permanganate treatment for 



seed grains 844 



salts, effect on germination and 



growth of crops, U.S.D.A 125 



(See also Potash salts.) 

 sulphur mixture, insectlcidal 



value, U.S.D.A 60 



Potato — 



aphis, control by lady beetles, 



Va.Truck 555 



beetle, Colorado, life history, 



U.S.D.A 756 



beetle. Colorado, notes. Wash__ 753 



beetle. Colorado, oviposition — 655 



Potato — Continued. Page. 



black heart, investigations 24:; 



blight, infection experiments 52 



blight, treatment with hot 



water 50 



canker, treatment 247 



corky scab, notes 241 



curly leaf, studies 450 



diet, effects of 164 



diseases, investigations 44:i 



diseases, notes, Mich 744 



diseases, notes, Ohio 543 



flea-beetle, notes, N.J 158 



flea-beetle, remedies 361 



flour, use in baking 365 



foliage, composition and feed- 

 ing value 565, 664 



late blight fungus, germination 



and Infection, Wis 246 



late blight, hibernation of fun- 

 gus, U.S.D.A 155 



late blight, notes 50, 843 



leaf roll disejises, notes 443 



moth, remedies 654 



pink and green aphid, studies. 



Me 550 



planters, tests 88, 788 



poisoning, studies 164 



powdery scab, native habitat 045 



powdery scab, treatment 247 



refuse, effect on milk 471 



Rhizoctonla disease, studies 350 



rot, notes 50 



scab, treatment, Ind 744 



scab, treatment, N.J 156 



starch, baking tests 460 



tuber rots, studies. U.S.D.A-— 246 



tuber worm, notes 250, 851 



tuber worm remedies 654 



wart disease, studies 844 



I''otatoes — 



amyloclastic activity 428 



breeding experiments, S.C 634 



culture 528 



culture, N.Y.State 36 



culture, Wyo 630 



culture contests 493 



culture experiments, U.S.D.A. 228, 229 



culture in Georgia 435 



culture under Irrigation, Colo 528 



effect on composition of follow- 

 ing wheat crop 230 



effect on soil moisture 17 



factors affecting health, Colo 746 



fertilizer experiments 24, 



518,519,622,820 



fertilizer experiments. Mass 294 



fertilizer experiments, Mich 723 



Irrigation experiments, U.S. 



D.A 229 



irrigation experiments. Wash — 721 



loss in boiling 660 



marketing. Wis 2S8 



marketing cooperatively 288 



respiration Investigations. Md-_ 523 



seed, certification in Germany.- 444 



