INDEX OF SUBJECTS. 



983 



Propionamid as a source of ammonia, Iowa. . 723 



Proso, culture experiments, N.Dak 424 



in Texas Panhandle, U.S.D.A. 429 



Prospaltella herlesei, notes 854 



perniciosi n. sp. , description 459 



parasitic on San Jos6 



scale 758 



pertti;iana n. sp., description 359 



Proteid. (SeeProtein.) 

 Protein- 

 assimilation, review of investigations 567 



catabolism as affected by glucose 663 



studies 164 



cleavage products, fatigue producing, 



studies 568 



formation, localization in plants 323 



metabolism, relation to thyroid secretion. 868 

 utilization of ammonia in.. 62,365 

 Proteins- 

 agglutination 502 



chemistry of, treatise 408 



coagulation by heat 501, 502 



ultraviolet rays 130, 131 



constitution 715 



density and solution volume 108 



detection 715 



maintenance experiments with 767 



of com, nutritive value 62 



gliadin, modifications in 608 



rice, reagent for 88 1 



tyrosin content 465 



utilization as affected by fasting 268 



Protoplasmic contractions resembling plas- 



molysis in eel grass 134 



Protozoa, determination in soils 123 



from sewage-sick soils, notes 316 



infectious, notes 676 



relation to bacterial activity in 



soils 123 



treatise 360 



Prime industry in Oregon, Oreg 148 



orchards, protection against frost, Oreg. 147 



Pnmes, ash analyses, Ohio 861 



composition as affected by irrigation, 



Idaho 236 



dried, preparation and use, U.S.D.A. 462 



drying, Oreg 148 



Pruning, effect on sweet peas and tomatoes, 



Md 339 



Prunus laurocerasus, hydrocyanic acid in 133 



Prussicacid. (See Hydrocyanic acid.) 

 FsaUiota campestris, prevalence in South 



Africa 461 



Pseudococcus bakeri, notes 454 



cateeotarias, notes, U.S.D.A 53 



citri. (See Citrus mealy bug.) 



nicotianx n. sp., description 758 



soccftort, notes 854 



P.R 52 



yerbasantz n. sp. , notes 455 



Pseudomonas campestris, notes, Coim. State... 547 



cerastts, notes, Oreg 154 



fliLoresceTis, notes, \t 157 



^tedwZin.sp., studies 845 



Pseudophoenix sargentii, notes 341 



Psoroptes communis ovis, notes 159 



Page. 



Psychoda albimaculata n. sp., description 159 



Psychonotua sp., notes, P.R 652 



Psylla isitis, life history and remedies 854 



pyTl{pyTicola). (See Pear psylla.) 

 Psylliodes punctulata. (See Hop flea beetle.) 



Pterocarpus marsupium, notes 443 



Pteromalus egregius, notes. Me 252 



Pteroptrichoides perkiruii n. sp., notes, Hawaii. 253 

 Public health, relation to well and spring 



water 512 



Puccinia — 



coTonata, winter resistance of uredospores. 645 



dispersa, wintering over in uredo stage. . 346 



geranii, studies 345 



maydis, studies 45 



psidii, notes 243 



spp., notes 445 



Puget Sound Basin, Wash., soil survey, U.S. 



DA 17 



Pulleys, power-transmitting capacity 488 



Pulp and paper industry, bibliography, U.S. 



D.A 119 



wood, production in Canada 344 



Pulse irregularities in horses 671 



Pulvinaria vitis (^innumerabilii). (See 

 Maple-scale, cottony.) 



Pumping plant for drainage 785 



plants for irrigation In Kansas 784 



use in irrigation, U.S.D.A 121, 181 



Pumpkins, parthenogenesis in 837 



transformation of nitrogen by 133 



Pumps, centrifugal, notes 893 



motor-driven, design and operation. . 489 



reciprocating, notes 292 



two-stage turbine , tests 893 



Purdue University, notes 698 



Purin bases of muscles, behavior during fa- 

 tigue 366 



bodies, studies 63 



metabolism, studies 63, 365 



Purslane sawflies, notes 252 



Pus cells. (See Leucocytes.) 



Pycnoderes quadrimaculatus, notes, Ariz 453 



Pycnosoma megacephala, notes 482 



Pyemia in horses 179 



Pyocyanase, properties of 378 



Pyrausta vastatriz, notes 453 



Pyridin bases, detection in ethyl alcohol 312 



Pyrites, production and use in 1911 213 



Pyritic cinder, fertilizing value 129 



Pyrophosphate, assimilation by plants 624 



Pyrophosphoric acid, relation to toxicity of 



cotton-seed meal, N.C 76 



Pyrus sinensis, studies, N.Y. Cornell 541 



Pythiacystis citricola, notes 243 



Pythium debaryanum, notes 549, 647 



sp., affecting cotton 749 



Quack grass, identification 741 



Quince fire blight, notes, N . Y.Comell 348 



Wash 848 



fruit spot, notes. Conn. State 547 



juice, fermentation 116 



Quinces, fibro-vascular system 542 



reducing and nonreducing sugars in . 503 



Quincy Valley, Wash., irrigation project 486 



Quinin, use against rabies in dogs 883 



