1290 



EXPERIMENT STATION RECORD. 



Page. 

 Plants— Continued. 



injury by fumes from industrial works . 652 

 medicinal, in the United States, U. S. 



D. A 752 



native, in the Transvaal 6.55 



of Guam , 233 



Mexico and Central America 233 



the Rio Colorado delta 961 



ornamental, culture in Alaska. U. S. 



D. A 349 



in North Carolina 44 



notes, Mont 451 



poisonous, in Australia 1118 



Indiana 961 



notes 1112 



to stock 569 



proteases of, investigations 542, 750 



proteolytic enzyms in 542 



regeneration in 956 



respiration 234 



root systems, U. S. D. A 716 



symbiotic relationships 22 



tropical, as affected by change of envi- 

 ronment 1 146 



water requirements 21, 814 



transfer in 452 



Plasmodiophara brassicx. (See Cabbage 

 club root.) 



Plasmopara cubensis, notes, W. Va 263 



Plaster, land. (See Gypsum.) 



Platinum crucibles, deterioration 527 



Plats, experimental, grading 195 



Platte River and tributaries, water rights 



on, U. S. D. A . . . 510 



Pleospora, relation to Ifelminthosporium . . 1078 

 Pleuro-pneumonia— 



contagious, etiology 191 



in sheep 908 



notes 80, 701 , 101 1 



control 590 



immunization 701 



in cattle 804 



horses 1192 



sheep 1192 



prevalence in Australia 1112 



France 1011 



Germany 186, 804 



serum, distribution in the Transvaal . . . 591 



Plodia interpunctella, notes 1093 



Plow, evolution of 93, 195 



irrigation furrow 597 



new, description 195 



subsoiling 710 



Plowing, experiments 98 



in dry farming, Colo 752 



with a traction engine 93 



Plows, electric, in Italy 93 



exhibit 93 



tests 91 



Plum aphis, notes, Can 160 



black spot, infection 157 



borer, remedies, Ga 466 



brown rot, notes 1162 



Burbank, origin 250 



crown gall, notes. Ga 466 



curculio, notes 478, 782 



Can 160 



Page. 



Plum curculio, notes, Mont 266 



U. S. D. A 1091 



remedies, N. Y. Cornell 784 



diseases, notes, Ala. College 471 



gouger, notes, Colo 1169 



U. S. D. A 782 



pockets, notes 673 



remedies 1162 



pulvinaria, notes 478 



scale, notes 783 



silver leaf disease, notes 987 



Wickson, origin 250 



wilt, notes, Ga 466 



Plums, analyses, N. Y. State 41 



blossoming and ripening periods, 



Yt 1071 



period, Va 864 



culture, Ga 466 



Ohio 562 



experiments, Miss 1157 



in Alaska, U. S. D. A 349 



Argentina 662 



South Dakota, S. Dak. . . 253 



fertilization and sterility 39 



fertilizer experiments, N. J 364 



grafting experiments, Yt 1069 



marketing, Mass 247 



plant food used by, N. Y. State .... 39 



varieties 975 



Can 140,141,661 



Ga.... 466 



La 366 



Mass 247 



Miss 1157 



Ohio 562 



S. Dak 254 



Yt 1071 



winterkilling. Can 140, 141 



Pneumo-enteritis in calves 593 



Pneumonia in horses 191 



etiology 1017,1115 



infectious, in rabbits 402, 810 



(See also Pleuro-pneumonia.) 



Poa buckleyana, notes, Wyo 240 



lucida, notes, Wyo 240 



Podacanthus wilkinsoni, notes 881 



Podisus maculiventris, notes 620 



Poison tulip, poisoning of cattle by 808 



Poisons, effect on plants 20 



Poke weed leaves, proteolytic enzyms in 542 



Poll evil, treatment 292 



Pollard for calves 894 



Pollination methods 1 12, r 



Polypeptids, studies 1134 



Polyphemus moth, notes 783 



Polyporus obtusus, notes 376 



schiveinitzii, notes 158 



Pomegranate, culture on Florida Keys 1071 



Pomelos, Chinese, notes 368 



notes 768 



shipping experiments 662 



Pomology as a study 38 



Ponds, bacteriological examination of wa- 

 ter, Okla 338 



drainage into wells 640 



Pontia rapse, notes, U. S. D. A 162 



Poor, colonization in the country 816 



