886 



EXPEKIMENT STATION RECOED. 



Page. 



Plant lice, parasites, classification 451 



remedies, Can 350 



Colo 352 



{Sec also Apple aphis, etc.) 



nutrition investigations, Fla 343 



oils, reaction 012 



pathology, treatise 340 



residues, effect on composition of soils. . 312 

 tendrils, strength of, as affected by ten- 

 sion 1 318 



tissues as affected by wind 318 



zinc sulphate 727 



electrical response in 317 



Plantago lancrolalo in alfalfa seeds, Okla 133 



Plantain, Rugel, germination as affected by 



manure, Iowa 737 



Plants- 

 acclimatization, U.S.D. A 426 



accumulation of nitrates in 421 



activity as affected by soils 20 



analyses 302 



as affected by grafting 31 



magnesia 422 



salts 027 



tension 318.728 



assimilation- 

 investigations 318 



of atmospheric nitrogen by 727 



carbon by 422 



mineral substances by 227 



phosphoric acid by 722 



potash by 722 



betain content 30 



coloring matter in, studies 627, 72(i 



composition as affected by — 



fertilizers 226 



sodium, R.I 212 



culture, bibliography 495 



in Indo-China 536 



treatise 495. 7.39 



distribution in arid regions 535 



the Philippines 630 



of rennet in 533 



drug, descriptions, r.S.D..\ 320 



effect on atmospheric temperature and 



humidity 526 



enzyms in 31, 228, 317 



forcing experiments 544 



formation of anthocyanin in 628 



freezing experiments 127 



graft hybrids, studies 320 



herbaceous, grafting experiments 544 



house, treatise 441 



imports, U.S.D. A 27, 424 



improvement 43 



in Alaska, Alaska 799 



equatorial Africa 60 



industrial, culture in Argentina 631 



injury by frost and hail 50 



insects affecting 146 



light-perception organs in 728 



lime and magnesia lor 30, 316, 624 



manganese in 717 



medicinal, culture in Argentina 631 



movement in 31g 



nematodes affecting 749 



Plants— Continued. Page. 



of Mount Rose; Nev 15 



San Bernardino Mountains 449 



oleaginous, book 3,32 



ornamental, culture, Alaska 738 



in Wyoming, Wyo 27 



nitrate of soda for 142 



perfume, treatise 307 



phosphorus compounds in, extraction. . . 517 



photosynthesis in cig 



poisonous, notes , 496 



predi.sposition to parasitic diseases 745 



relation to formation of loess 218 



respiration investigations 32, 127, 532 



self-ferlility in 29 



solanaceous, vegetable rennets in 629 



transformation of starch in • 223 



transpiration 27, 725 



tuber, water-storing capacity 226 



wild, variation and correlation in 28 



woody, as affected by fertili ',ers 220 



Plasmodiophora spp., studies 423 



Plasviodium jirxcox, development 587 



Plnsmopara cubcnsis, notes 1:55 



pygmfea, notes 626 



viticoJa, notes 644 



Plastein, cleavage products, studies 9 



Plaster, land. (See Gypsum.) 



Plemelidla abictina, life history 264 



Pleuro-pneumonia, contagious — 



danger from imported cattle 179 



in cattle 179 



horses , 585 



prevalence in "West Australia 79 



Plodia interpunctelln. (See Indian meal 

 moth.) 



Plow, motor, description 291, 589 



Plowing by steam in the Philippines 589 



engine, electrical, description 87 



experiments 425 



traction, progress in. .• 186 



Plum aphis, notes 648 



brown rot, notes 643 



curculio, notes 252, 554, 555 



diseases, notes, Mo. Fruit 243 



studies ,343 



jelly, investigations 460 



juice, analyses 767 



leaves, chlorin content 30 



pollen, distribution by wind, Oreg 636 



Plums, blossoming as affected by ether 236 



cultivation v. sod mulch for, Mich 333 



growth by day and night, studies 533 



improvement 92 



insects affecting, S.C 157 



Japan hybrid, notes 439 



new, descriptions, Ohio 545 



varieties. Can 332 



Mich 333 



Tex 544 



wild, analyses 525 



Plufella maculipennis. (.See Diamond back 

 moth.) 



Plymouth Rocks, barring in 671 



Pneumonia, transmission by bacilli .585 



treatment 585,783 



(See also Pleuro-pneumonia.) 



