1308 



EXPERIMENT STATION RECORD. 



I'age. 

 riants— Continued. 



culture 1133 



in unheated greenhouses 445 



Linna'us's lectures on 1120 



stations in Denmark 131 



dead, elimination of carbon dioxid by.. 830 



desert, physiology of stoniata in 525 



detonnination of transpiration in 733 



development as alTccted by light 1124 



disease resistance in 226 



distribution, Cal 641 



in the Transvaal 739 



dry weight as affected by light 828 



effect on soils, Minn 436 



evergreen , t ranspiration 829 



factors affecting 739 



fasciations in 246 



fertilizer experiments 1118 



food, of white fly, Fla 1053 



for breeding, collection 597 



ostriches in Cape Colony 870 



windows, culture 644 



forcing experiments 241 , 625, 640 



formation of amino acids in 830 



proteids in 1122 



function of potash in 1018 



gum formations in 1025 



herbaceous, grafting experiments 751 



perennials, notes. Can 1038 



heredity in 325, 927 



honey and pollen-yielding, of Texas 653 



culture in Michigan, Mich 144 



in Argentina 355 



Hawaii, U.S.D.A 959 



notes, Tex 128 



hydrocyanic acid in 434, 527, 928, 1027 



imports, U.S.D.A 528,828,1027 



into Germany 60 



injury by cold, prevention 523 



meteorological phenomena 845 



inoculating material for 719 



inoculation experiments 520 



insects affecting 762, 1042 



life history 592 



liliaceous, mites affecting 61 



medicinal, notes 540, 641 



report on 397 



micro-organisms in 367 



migration, studies 323 



mineral nutrients, treatise 920 



nitrate-reducing enzyms in 26 



nitrates in 165 



of Canadian parks, notes 1136 



Flemish dunes, biology 945 



German meadows, characteristics 367 



Williston area, N.Dak 528 



oil, potash requirements 221 



ornamental, culture in Wisconsin 841 



fertilizer experiments 21 



oxidizing diastases in 1025 



power, U.S.D.A 1017 



poisonous, notes 367, 379, 528, 739, 1120 



to stock 81, 189, 791 



^propagation 891, 1133 



protection, papers on 946 



protective value of sodium to 527 



I'age. 

 Plants— Continued. 



relation of sugar and starch content to 



action of stomata 830 



to evaporation 224 



respiratory pigments 829 



r61e of fat in 735 



mineral salts in 27 



zinc in 831 



root systems, N. Y.State 927 



ruljl:)er-producing, analyses, N.Mex 195 



salt-marsh, osmotic properties 626 



sand-binding, notes 1134 



sap flow in 225 



species forming, mode 598 



stomatal physiology, bibliography 527 



tests, N.Dak 512 



transpiration apparatus, description 733 



investigations 129, 324 



tropical, treatise 148 



use in paper making, U.S.D.A 876 



variegation experiments 131 



water, edible, in India 340 



wounded, changes due to 1027 



Plasmodiophora brassicx. (See Cabbage club 

 root.) 



Plasmolysis, studies 7.38 



Plasmopara cubensis, studies 247 



viticola, notes 1140 



Plaster, land. {See Gj^psum.) 



Plathypena scabra, notes. Conn. State 1048 



Platinum, effect on action of rennet. Wis 80 



germination of wheat 225 



Pleuro-pneumonia— 



contagious, prevalence in Africa 279 



immunization 82 



prevalence in Africa 478, 576, 680, 1080 



Germany 876 



Great Britain 679 



Queensland 788 



virus, studies 1080 



Plow, development 217 



Plowing contests, benefits 599 



deep, notes, U.S.D.A 630 



experiments 832 



machine, description 1194 



notes 692 



with motor power, tests 485 



Plowrightia ribesia, notes 55 



Plum aphis, notes, Colo 856 



black knot, notes 55 



brown rot, treatment, Okla 950 



curculio, notes, Me 1049 



Minn 1050 



remedies, N.J 656 



studies 496, ] 146 



diseases, treatment, N.Y.Cornell 52 



gouger, notes 1146 



jams, analyses 773 



lecanium, notes, N. Y.State 952 



products, descriptions 359 



rot, treatment 253 



Plumage, coloration as affected by humidity. 598 



factor hypothesis in 598 



Plums, blooming period, N.Y. State 42,642 



R.I 145 



breeding experiments, S.Dak 239 



