452 



EXPERIMENT STATION RECOED 



Plants— Continued, 

 woody— continued. 



food reserve in, (40) 425. 

 forcing, (28) 837; (30) 642; (36) 431. 

 of German East Africa, (29) 643. 

 Kentucky, (29) 41. 

 Oahu lowlands, (34) 345. 

 Pikes peak region, (26) 140. 

 Switzerland, (35) 842. 

 periodicity in, (29) 442. 

 phloem and bark diseases of, (34) 442. 

 pocket guide, (37) 746. 

 recovery from hail wounds, (29) 131. 

 reserve fat in, (3.5) 225. 

 rest period in, (32) 437; (33) 223. 

 root growth of cuttings, (39) 826. 

 wound parasitism and predisposition in, (35) 



347. 

 wounded, heat evolution by, (27) 830. 

 wounded, infection, (30) 243. 

 zymase formation in, (39) 733. 

 Plasma — 



membrane as aflected by anesthetics, (26) 823. 

 membrane in plants, (38) 523. 

 Plasmas — 



collocation within the cell, (39) 574. 

 living, coalescence of, (30) 224. 

 Plasmodia, photomicrographs of, (29) 478. 

 Plasmodiophora brassicae, see Cabbage clubroot. 

 Plasmodiophoraceae, studies, (27) 46; (31) 145. 

 Plasmodium spp., cultivation in vitro, (28) 179. 

 Plasmolysis — 



false, in eel grass, (29) 134. 

 false, in young cells, (30) 130. 

 in plant cells, (29) 627. 

 studies, (27) 829. 

 Plasm opara — 



cubensis, notes, (29) 243; (33) 146. 

 nivea, notes, (30) 240, 746. 

 viticola — 



development and treatment, (26) 550. 

 germination of winter spores, (29) 350; (37) 



252. 

 incubation period, (29) 350. 

 infection of grape leaves by, (26) 550. 

 notes, (27) 750; (36) 347; (37) 550; (38) 651; 



(39) 56, 356, 357; (40) 53. 

 relation to temperature, (27) 49. 

 spore germination and infection with, (28) 



749. 

 Studies, (26) 450, 851; (28) 54, 55, 244, 448; 

 (29) 155, 249; (30) 452; (31) 346; (33) 55, 

 248, 545; (34) 246, 352, 544; (35) 646. 

 treatment, (27) 151; (28) 850; (29) 50; (31) 

 843; (34) 748, 842. 

 Plasmophaga antennalis, notes, (26) 148. 

 Plaster cast of diseased fruits, (31) 748. 

 Plastering, exterior, specifications, (31) 387. 

 Plastids — 



constitution of, (31) 427. 

 evolution and physiological role, (32) 524. 

 formation in plants, (28) 524. 

 mitochondrial origin, (40) 818. 

 plant, role in cell protoplasm, (36) 730. 

 Plat experiments- 

 calculating yields, (36) 827. 

 elimination of error in, (34) 735; (38) 229; (39) 829. 

 error in, (28) 536, 537. 

 field technique, (40) 226, 623. 

 harvesting device, (38) 228. 

 standardization, (39) 828; (40) 823. 

 technique, (38) 429. 

 Plathelminths, review of studies, (31) 154. 

 Plathypena scabra on alfalfa, (39) 865. 

 Platinic chlorid, potassium, rapid reduction, (40) 



711. 

 Platinum— 



chlorids, effect on starch ferments, (27) 109. 

 metallic, effect on Aspergillus niger, (30) 824. 

 recovery from potash determination, (40) 806. 

 Russia's production of, (40) 12. 

 scrap, conversion into chloroplatinic acid, (34) 

 804. 

 Plats, experimental- 

 shape and size of, (31) 131. 

 size of, (31) 333, 733. 

 Platychirus — 



albimanus, parasites of, (31) 62. 

 perpallidus, life history, (38) 362. 

 Platydema sp., remedies, (27) 258. 



Platygasterinae, life history and key, (38) 565. 

 Platymesopus erausquinii n.sp., description, (31) 



355. 

 Platymetopius spp., notes, (27) 859. 

 Platynota rostrana, notes, (27) 150; (28) 451. 

 Platyomus lividigaster — 



life history, (29) 253. 



notes, (27) 656. 

 Platyparea poeciloptera, notes, (34) 851. 

 Platypedia areolata on olive, (38) 157. 

 Platypeza of Virginia, (34) 857. 

 Platypodidae, key, (39) 65. 

 Platypsylla castoris, parasitism, (31) 60. 

 Platypus sp., notes, (32) 552. 

 Playgrounds, development and care, (30) 645. 

 Plectodiscella — 



piri n.g. and n.sp., description, (33) 649. 



piri, notes, (33) 350. 



veneta, life history and treatment, (38) 853. 



veneta n.sp., description, (38) 252. 



veneta, treatment, (39) 457. 

 Plectrodera scalator, see Cottonwood borer. 

 Plectrothrips n.sp., from Jamaica, (36) 550. 

 Pleiospermium n.g. and n.spp., descriptions, (36) 



433. 

 Plenodomus— 



destruens — 



distribution and prevalence, (33) 743. 

 n.sp., description, (30) 351. 

 studies, (39) 854; (40) 347. 



fuscomaculans — 



growth and pycnidium formation, (34) 647. 

 n.comb., notes, (38) 453. 

 studies, (35) 653; (36) 746. 



sp. on apples, (34) 744. 

 Pleosphaerulina on alfalfa, (33) 848; (36) 450. 

 Pleospora — 



batumensis n.sp., description, (27) 546. 



disrupta, notes, (31) 539. 



eriobotryae n.sp., description, (31) 746. 



lierbarum, notes, (29) 245. 



lespedezae n.sp., description, (34) 242. 



n.sp., notes, (28) 52. 



sp., affecting Lolium, (26) 545. 



sp., injurious to figs., (26) 449. 



trichostoma, treatment, (32) 145, 341. 

 Plesiocoris rugicollis — 



notes, (32) 849. 



remedies, (38) 58. 



studies, (40) 60. 

 Plesiothrips, erection, (34) 356. 

 Plesispa reichei, notes, (40) 260. 

 Pleural fluids, detection of tubercle bacilli in, (28) 



377. 

 Pleurisy, exudative, in horses, treatment, (30) 385. 

 Pleurisy, treatment, (2C) 484; (27) 576. 

 Pleuritis, autoserotherapy in, (31) 179. 

 Pleuropneumonia — see also Influenza, equine. 



contagious — 



in bovines, (26) 286; (39) 685. 

 bovines, diagnosis, (31) 584. 

 bovines, review of literature, (31) 177. 

 cattle, ultramicroscopic bodies in, (29) 

 687. 



etiology, (27) 184. 



exudative, in goats, (39) 891; (40) 888. 



immunization, (31) 883. 



in goats, (31) 286. 



in horses, treatment, (26) 684. 



notes, (26) 173. 



virus, effect on calves, (27) 785. 

 Pleurotropis — 



atamiensis, notes, (26) 63. 



epigonus in United States, (35) 760. 



n.sp., description, (36) 557. 



rugosithorax n.sp., description, (30) 59. 



telenomi n.sp., description, (26) 352. 



testaceipes n.sp., description, (32) 557. 



utahensis n.sp., description, (30) 661. 

 Pleurotus — 



nidiformis, description, (35) 755. 



ostreatus, fruiting forms, (32) 341. 



spp., studies, (28) 852. 



ulmarius, description, (30) 151. 

 Plocaederus ruficornis, notes, (29) 457. 

 Plodia interpunetella, see Indian meal moth. 

 Plorabunda oculata, studies, (29) 355. 

 Plover, Pacific, migration, (27) 355. 

 Plover, upland, notes, (27) 355. 



