1166 



EXPERIMENT STATION RECORD. 



Page. 



Plants, forcing by ether 243 



hardy, reproduction by hybridiza- 

 tion and crossing 613 



injury by fumigation with hydro- 

 cyanic-acid gas 613 



New Zealand seedlings 421 



of Mexico and Central America, 



studies, U. S. D. A 24 



of Ocracoke Island, ecological study, 



U. S. D. A 72(1 



packing and shipping 345 



periods of growth 122 



poisonous, notes, Xebr 419 



to stock, Mont 891 



notes 218 



regulations of foreign governments 



regarding importation, U. S. D. A. 775 



resistant to alkali 621 



seasonable dimorphism 24 



self sterility 613 



useful, of Mexico, U. S. D. A 24 



Plasmodiophora brassicx as a cause of tumors 685 



notes 218 



studies 358 



vilis, notes 464 



Plasmoii as a substitute for albumin ... 177 



food value 177, 379 



Plasmopara cubetisis, notes, Conn. State 566 



Fla 1056 



viticola. [See Grape downy mil- 

 dew.) 



notes 464 



Platanus occidentalis. notes, Utah 153 



Platysarnia cecropia, notes. Me 68 



Playgrounds, management and improve- 

 ment 649 



Pleospora caraganie, n. sp., description 1057 



Pleurisy in cattle 892 



PI eu ro-pn eumonia — 



contagious, in cattle, notes 790 



U. S. D. A.. 488 



treatment 491 



in dairy herds 788 



notes 685 



Plodia intfrpunctrlla, notes 867 



Plow, Borsig electric ■ 1097 



evolution 697 



I'loirrightia 7>i(>rboi<a, maturation of spores. . 657 



notes 767 



ribesia, notes 262 



Plows, trials 296 



Plum black knot, notes 767 



curculio, notes, Me 68 



Mont 869 



N. H 468 



disease, notes 654 



diseases in the Hudson Valley, N. Y. 



State 155 



.Tune drop, causes, Vt 238 



scale, New York, notes 469 



Plums, culture, Iowa 240 



in Kansas 853 



pots 853 



European, types, Vt 239 



flower development. Wis 22 



forcing under glass 853 



Page. 



Plums, growing in high latitudes. Can 548 



hybrid varieties, Vt 151, 239 



injury by freeze of 1898-99, Colo 244 



Japanese, notes 953 



new varieties 450 



notes, Cal 915 



pollination, Vt 23H 



retarding blossoming period. Can . . 548 



self-sterile varieties, N. Y'. Cornell . . 237 



thinning, Del 753 



varieties ,54, 1044 



Iowa 240 



Mich 2:i7 



Mont 8.53 



Ohio 557 



Okla 648 



wild, bud development, N. Dak 215 



Plutdla cruci/erarum, notes. Can 367 



Pneumonia bacteria, effect on leucocytes.. 1084 



in cattle 892 



horses, notes 790 



studies 292 



poultry, treatment, Oreg ... 1092 



notes 885 



Pneumomycosis due to Aspcri/illnii /umi- 



gatHS 091 



I'ochazia aitstralis, notes 367 



Pod pea, edible, notes, Cal 936 



Podosesia nyringx, notes, Colo 265 



Piecilocerut! Korotrcmiis, phosphorescent or- 

 gans 167 



Pogonip, U. S. D. A 1015 



Poisoning by minerals and plants 885 



PolintcK lineata, notes 264 



Poll evil of horses, studies 292 



Pollen, immediate efTect in maize, U. S. D.X. 717 



substitutes for bees, Colo 660 



Pollination of orchard fruits, N. Y. Cornell. 237 



plums, Vt 238 



Polyarthritis of calves 193 



Polijcryuii i-iifcscrns. notes 865 



Polygonatum parasite, description 768 



Polyporus bcttdinuK, notes 573 



earneus, notes, U. S. D. A 766 



iyniariusfulvus, notes 254 



junipefinus, notes, U. S. D. A 766 



obliquus, notes 867 



sulpliureiis, notes 464, 573 



on oaks 958 



Ptdythriiicium trifolii, notes b72 



Pimmtostomus. spp., notes 424 



Pomegranate, vegetable, S. Dak 553 



Pompilus viaticus, notes 469 



Poplar, Carolina, notes 1049 



plantations in Pennsylva- 

 nia 651 



trembling-leaved, notes. Can 659 



PDpidiis alba bollrana. notes, Utah 153 



iiivea, notes, Utah 153 



angalata, rate of growth 1048 



balsamijera intcrmrdin. notes, Utah. 153 



deltnidcs, notes, Utah 153 



plantations in Pennsyl- 

 vania 651 



fasligiata, rate of growth 1048 



lauri/olia, notes, Utah 153 



