INDEX OF SUBJECTS. 



975 



Pineapple vinegar, manufacture, Hawaii 813 



Pineapples- 

 analyses and use 3t)3 



breedmg experiments, Hawaii ,S3.S 



fertilizer experiments 525 



varieties 525 



Pines- 

 East Indian, wood structure 10 



insects alTectmg 2 1'J 



larch canker affecting 2 18 



loblolly, forest management, U.S.D.A. . . 440 



lodgepole, for telephone poles, U.S.D.A . . 843 



long-leaf, conversion into paper pulp 615 



short-leaf, in Virginia 534 



white, device for planting seeds, Mass 146 



white, forest management, U.S.D.A 535 



white, in Iowa, Iowa 46 



Pinus— 



betheli n.sp., description 538 



spp. , effect of moisture relations on 228 



Pinus, photomorphie shoots in 744 



Pipe lines, construction 188, 289 



Pipes- 

 cement, for orchard irrigation 889 



flow of water in 7S6 



jointed concrete, tests 689 



pressure, for water conveyance 187 



reinforced concrete, tests 889 



wood-stave, frictional resistance in, Colo. . 885 



Piroplasma canis, culture in vitro 481, 781 



Piroplasma infection in healthy cattle 282 



Piroplasmosis— 



bovine, treatment 282 



(See also Texas fever.) 



canine, of Europe and Africa 481 



equine, in Algeria 282 



in horses, camels, and hares 679 



monograph 79 



Pisum, gametic reduplication in 433 



Pisu m sativum, variations in 739 



Pituitary- 

 body, active substances of 578 



extract, use in bovine and equine ob- 

 stetrics 180 



solution, effect on milk secretion 272 



Plague, bubonic. {See Bubonic plague.) 



Plant— 



breedmg at Tystofte 134 



breeding experiments at Svalof, Sweden. 435 



breeding experiments, error in 525 



breeding, genetic and environmental fac- 

 tors in 329 



breeding in Germany 525 



breeding plats, standing room of plants 



in 632 



breeding, principles of 732 



breeding, selection in 732 



development, rOle of reserve material of 



seeds in 132 



Bases- 



and insect pests, treatise 745 



bibliography. Mass 147 



in Denmark 47 



in Dutch East Indies 697 



in Egypt 746 



in Germany 349 



Plant— Continued. Page, 



d iseases— cont inued . 



in Java 747 



in Kent 348 



in Klosterneuburg 240 



in Kolozsvdr 240 



in Michigan 240 



in New Jersey 746 



in C^ueen-sland 747 



in South Africa 747 



in Texas 537 



in Wageningen 240 



in West Indies 546 



international control 537 



legislation in Ceylon H6 



notes 647 



notes, Mass 147 



notes, N.J 349 



review of literature 47,240,648 



text-book 347 



treatise 240 



treatment 648 



(See also different host plants.) 



food, lo.ss in drainage water 22 



food, production in soils 624 



food, relation to soil protozoa 517 



galls, treatise and bibliography 852 



growth and climate, relationship 16 



growth as affected by bastard trenching. 238 

 growth as affected by electricity.. . 524,827,828 

 growth as affected by manganese and alu- 

 minum 824 



growth as affected by nutrient and non- 

 nutrient bases, N.Y.Comell 128 



growth as affected by shade, N.J 343 



growth as affected by sodium sulphate. . 31 

 growth as affected by soluble humates. 431, 721 



growth as affected by spacing 633 



hybrids, spontaneous, diagnosis 433 



inspection. (See Nursery inspection.) 



lice, notes, Mass 153 



(See also Apple aphis, etc.) 



organs and tissues, electrical potential in. G30 



pathology, college work in 898 



physiology, course in 695 



roots, effect on soil structure 120 



roots, secretion of toxic substances by 522 



roots, secretions of 228 



tissues, stimulation by Roentgen rays ... 729 

 Plantain— 



cultiire experiments 229 



recipes 165 



wild, fiber from 38 



Plants- 

 acclimatization 328 



animals affecting 349 



as affected by atmospheric electricity 430 



as affected by chemical fumes 432 



as aflected by chemicals. N.J 343 



as affected by radiant energy 431 



as affecte<l by nuiio-act ivity 30 



as affected by size of seed 725 



as affected by wind 30,354 



assimilation in 332 



barium content 502 



biology of, treati.se 429 



bree<ling for disea'^e resistance. . . ^31 



