INDEX OF SUBJECTS. 



983 



Page. 

 Piroplasmosis — 



canine, notes and treatment 882 



treatment 889 



equine, notes and bibliography 384 



parasites of 177 



relation to biliary fever 887 



marginal points in 173 



Pissodes notatus, notes 147 



stroM, notes, Conn.State 856 



Plagionotus speciosus, notes 147 



Plague, bubonic, paper on 245 



flea of Siberia and Manchuria, notes. 252 



human, in East Suffolk, England... 461 



in Hawaii, notes 854 



infection in domestic animals 280 



investigations in India 653 



relation to weasels, chipmunks, and 



pocket gophers 59 



transmission by flea bites 61 



tarbagans 653 



Plant antigens, hemagglutinating and precip- 

 itating capacity of 607 



breeding experiments — 



personal equation in 734 



with alfalfa, Colo 633 



asparagus, Mass 44 



com 833 



grasses '. 830 



oats S31 



sugar cane. La 235 



tobacco 133 



wheat 039, 831 



breeding in Germany, treatise 43 



Sweden, notes 839 



teaching 162 



treatise 325 



catalase, physiology of 803 



development, role of reserve material in 



seed 729 



diseases— 



and insects, law in Canada 51 



as affected by soil solutions 826 



bibliography, Cal 445 



control in various countries 445 



field laboratories for control 51 



in Bulgaria ■146 



Denmark 446 



investigations 142 



legislation in Canada 256 



microbial, notes 372 



notes 452, 844 



W.Va 746, 844 



of California, Cal 445 



tropical countries, treatise 51 



prevalence in P-ussia 693 



review of literature 51 



studies, Vt 53 



mrvey in Texas, U.S.D.A 645 



treatise 142,242 



treatment 48, 51, 345 



Ohio 539 



(See also different host plants.) 



distribution, studies 628 



food, absorption and utilization by su- 

 gar beets 737 



combinations for crops, Vt 622 



Page. 



Plant food, essential elements of 725 



relation to soil fertility. III 021 



requirements of forest soils 744 



foods, mineral, factors affecting in soils . 814 



galls, treatise 658 



growth, importance of water in 1 28 



relation to climate 429 



soil moisture; 420 



soils, and climate, relationship . 516 



treatise and bibliorraphy 658 



inspection. (See Nursery inspection.) 



lice, California, host index 149 



(See also Apple aphis, etc.) 



life and evolution, treatise 528 



relation to meteorology 513 



metabolism as affected by etherization. 127 



geotropie stimulation of . . . 326 



nutrition, r61e of nitrates in 625 



organs, wound stimulation and closure 826 

 physiology and distribution, relation to 



soil solution 422 



proteins, autolysis 801 



precipitation 482 



respiration — 



effect of organic substances on 628 



role of fermentation products and 



phosphates in 627 



variation in 628 



root diseases in West Indies 245 



roots, excretion of 129 



rusts, alternate hosts of 340 



smuts, life history and cytology 341 



substances, poisoning of animals by . . . 86 



transpiration, relation to soil fertility. . 36 



yield, relation to soil analyses 519 



Plantago lanceolata , geographical distribution. 335 



Plantains as affected by top dressing, Mass. . 40 



fungus disease affecting 345 



treatise 47 



Plants- 

 absorption and tolerance of in bogs 821 



tranepiration in 822 



adaptations in 347 



as affected by — 



bilateral illumination 824 



creatinin, U.S.D.A 420 



environment 392 



formaldehyde 731 



lime and magnesia ratio 35 



nucleic acid 814 



tobacco smoke 230 



assimilation of mineral matter by 521 



bacterial diseases of 844 



bulbous and tuberous, treatise 337 



chemical differentiation of species 106 



cruciferous, club root of 447 



Cystopus on. Wis 342 



cucurbitaceous, fungus disease affecting. . 244 



cultivated, variety groups of 43 



culture experiments 237 



desert, root habits 227, 728 



water-balance of 530 



differential septa in 531 



distribution as affected by climatic gra- 

 dient - 821 



electromotive phenomena in 297 



