982 



EXPERIMENT STATION EECORD. 



Page. 



Plalymelopius spp., notes, U.S.D. A 859 



Platyomus UvidigasUr, notes, Hawaii 656 



Pleospora baiumcnsis u.sp., description 546 



Pleurisy, treatment 576 



Pleuro-pneumonia — 



contagious. (5cc Influenza, equine.) 



etiology 1 ^^4 



virus, effect on calves 785 



Plover, Pacific, migration 355 



upland, notes, U.S.D.A 355 



Plow, ditching, construction and cost 90 



motor, notes ^ 91 



Plowing experiments f^^S 



Plows, effect of hitch on draft '*9 



electric, description 5S8 



engine gang, development 90 



motor, descriptions and tests r;0 



in Germany < S9 



notes 79 ! , 7V12 



tests t'90 



power, driving wheel for 485 



Flum curculio, notes, N.J 755 



Wis 53 



studies and bibliography, 



U.S.D.A 863 



diseases, notes, Can 3J9 



rot, treatment, Mich 143 



rnst, life history 48 



scale, notes and remedies 455 



stones, histological characteristics 112 



hydrocyanic acid content U 



wine, preparation 412 



Plumbing for farm homes 389 



Plums, culture experiments. Can '.'AZ 



of New York, monograph and bibli- 

 ography, N.Y. State 40 



pear thrips affecting, N.Y. State 1 56 



spraying experiments. Conn. State. . . 439 



Mich.. 143 



varieties in Oklahoma, Okla 241 



Plusia. chakites, notes, Hawaii 155,657 



PltUella macvlipennis. (See Diamond-back 



moth.) 

 Pneumonia, equine. {See Influenza, equine.) 



treatment 576 



(Sec alio Pleuro-pneumonia.) 



Podocarpineae, root nodules 828 



Pogonomyrmez barbatus molefaciens, studies, 



U.S.D.A 263 



Polanisia liidcritziana, analyses and digcs i- 



bility 871 



Poles, preservation, U.S.D.A 846 



Polisle^ ffalUca, notes 862 



Pollen as affected by sulphurous acid 635 



Polycaon confcrtus, notes 857 



PolychTosis viteana. (Sec Grape berry moth.) 



Polyctenidae, adaptation to parasitic life — 656 



Polyneuritis, development in poultry 66 



in birds, studies 568,868 



Polypeptids, hydrolytic action 802 



PolypoTUS spp., notes 653 



Polystictus versicolor, a wound parasite of ca- 



talpa 752 



Polysulphids, fungicidal value 865 



Pomelos, variations in 441 



Pommritz Agricultural-Chemical Station, re- 

 port 718 



Page. 



Ponds, storage, in agricultural districts 212 



Poplar diseases, descriptions 451 



Poplars, insects affecting 453 



Poponarthria tuberculata, analyses and di- 

 gestibility 871 



Poppy cake, analyses 872 



Population of United States 489 



Popuhis canadensis, notes 454 



PorccUio Ixvis, notes, U.S.D.A 658 



Pork, Chinese export, notes 71 



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



imports into Great Britain 470 



products, international trade 373 



salting experiments 471 



shipping experiments 470 



Porosagrotis vetusla, notes, U.S.D.A 159 



Porthetria dispar. (See Gipsy moth.) 



Porto Rico Station, report 899 



Sugar Producers' Station, notes.. 900 



University, notes 494 



Potash- 

 availability in fertilizers 496 



deposits in New Mexico, U.S.D.A 23 



United States 22, 500, 627 



Upper Alsace 421 



determination in fertilizers 496 



soils 514 



extraction from feldspar 724 



rocks and marls 23 



silicate rocks 500 



U.S.D.A.. 628 

 fertilizers — 



comparison 12.5,725 



economic use 24 



effect on composition of sugar beets.. 126 



keeping quality of fruit 644 



pasture grasses 125 



soils 622 



review of investigations 128 



time of application 1 25 



fertilizing value 534 



Ind 324 



Va 436,437 



field and laboratory tests for 23 



from alunite 628 



feldspar 725 



mica 520 



rapakivi and pegmatite granites 127 



seaweed 724 



silicates 724 



industry in Germany 691 



lime, preparation and use 326 



loss from soils 321 



Fla 321 



minerals, fertilizing value 724 



of soils, studies 520 



Tex 323 



requirements of nitrogen bacteria 226 



salts, absorption by plant leaves 324 



as a protection against frost 421 



effect on action of phosphoric acid . 623 



extraction 22 



fertiUzing value 125, 234, 725 



of United States 23 



production and use 327 



(See also Potassium salts.) 



use In 1911 727 



