454 



EXPERIMENT STATION RECORD 



Plums— Continued. 



American, description, (32) 837. 



analyses, (37) 42. 



breeding and testing in Minnesota, (40) 148. 



breeding experiments, (32) 338, 438, 834; (35) 



743; (36) 741; (37) 833; (39) 346, 844; (40) 742. 

 breeding of new varieties, (28) 540. 

 Chinese, host plant of fruit fly, (26) 758. 

 composition as affected by irrigation, (29) 236. 

 cost of production, (29) 439. 

 crown gall afTecting, (28) 447. 

 crown gall resistance in, (3.5) 645; (36) 352. 

 culture, (30) 840; (32) 45; (.39) 447. 

 culture — 



experiments, (27) 343; (28) 436. 

 in Alaska, (29) 743. 

 Europe, (37) 42. 

 Maryland, (37) 648. 

 Mesa County, Colorado, (37) 241. 

 New Mexico, (40) 18. 

 New York, (36) 836. 

 Ontario, (32) 744. 

 ■southern Texas, (32) 337, 539. 

 southern Utah, (30) 442. 

 Uruguay, (32) 745. 

 Utah, (33) 638. 

 Cytospora disease of, (34) 648. 

 destruction in Rhine Provinces, (26) 144. 

 dropping periods, (40) 740. 

 dust V. liquid spraying, (37) 832. 

 dusting experiments, (38) 546. 

 dying in France, (26) 850. 

 eflect on composition of urine, (31) 761. 

 European, pollination, (28) 237. 

 excrescences on, (39) 3.53. 

 fall V. spring planting, (26) 238. 

 fertile and self-sterile varieties, (40) 638. 

 fruit stocks for, (38) 345. 

 greengage, localization of acids and sugars in, 



(36) 110. 

 growing on grass land, (26) 639. 

 improvement in Minnesota, (34) 637. 

 injuries by freezing, (26) 749; (32) 43. 

 inoculation experiments with brown rot fungus, 



(33) 247. 

 Insects affecting, (30) 753; (33) 54; (38) 460, 843. 

 Japanese and hybrid, wilt disease of, (33) 248. 

 localization of acids and sugars in, (36) 110. 

 Monilia on, (30) 647. 

 new, descriptions, (29) 838; (30) 640; (31) 337; 



(32) 438; (33) 238. 

 of New York, monograph, (27) 40. 

 oriental peach moth on, (39) 259, 261. 

 pear slug afTecting, (26) 863. 

 pear thrips affecting, (27) 156; (40) 547. 

 picking and handling, (34) 437. 

 planting at different ages, (37) 647. 

 pollination, (34) 233, 341; (36) 139; (40) 148, 638, 



836. 

 pollination by bees, (36) 536. 

 preservation, (29) 312; (3,5) 367. 

 preservation bv pressure, (32) 416. 

 pruning, (30) 739; (32) 837. 

 pruning and training, (37) 344. 

 pruning experiments, (37) 240; (39) 347. 

 reducing and nonreducing sugars in, (29) 503. 

 ringing experiments, (32) 636. 

 ripening studies, (31 ) 311. 

 "salmon fly" injury, (39) 257. 

 seedling, variation in, (30) 144. 

 self-sterility in, (26) 239; (40) 148. 

 sod mulch v. culture, (30) 640; (33) 43. 

 •spray injury to foliage, (40) 161. 

 spray schedules, (39) 39, 140. 

 spraying experiments, (27) 143, 439; (28) 436, 



652; (37) 744;- (39) 345. 

 spring V. fall planting, (33) 439. 

 sterility in, (32) 834; (37) 240. 

 sterility studies, (40) 740. 

 stocks for, (32) 337; (40) 445. 

 tree census in Washington, (40) 340. 

 varieties, (29) 235; (32) 538; (33) 638; (37) 143, 



241; (38) 41. 

 varieties- 

 American, (32) 744. 

 Australian, (39) 844. 

 for Canada, (30) 840. 



home orchard, (40) 341. 



Plums — Continued, 

 varieties — continued . 

 for Indiana, (39) 447. 

 New Jersey, (33) 439. 

 Northwest, (39) 844. 

 Ohio, (37) 241. 

 Oregon, (39) 241. 

 western Washington, (33) 44. 

 in Oklahoma, (27) 241. 

 new, (39) 346. 



resistant to brown rot, (34) 444. 

 resistant to disease, (29) 246. 

 variety tests, (39) 346. 



wild goose, changes in during ripening, (34) 802. 

 wild, recipes, (37) 364. 

 winter injury, (40) 835. 

 winter washes for, (35) 38. 

 winterkilling, (32) 834. 

 Plum-sand-cherry, Cikana, description, (30) 640. 

 Plusia — 



chalcites, notes, (27) 155, 6.57; (31) 249. 

 eriosoma, studies, (40) 62. 

 gamma, notes, (26) 147. 

 PluteUa— 



armoracia, life history and remedies, (28) 656. 

 maculipennis, see Diamond-back moth. 

 Pljrmouth Rocks, see Fowls. 

 Pneumococcus — 



action of blood from different species on, (40) 



286. 

 as affected by serums and leucocytes, (26) 175. 

 hydrogen-ion concentration for growth of, (39) 



888. 

 immunity, studies, (40) 676. 

 infection, experimental, chemotherapy of, (39) 



185. 

 infection in horses, (40) 784. 

 studies, (40) 480. 

 Pneumonia — see also Pleuropneumonia, 

 action of digitalis in, (37) 375. 

 chronic catarrhal, in sheep, (35) 678. 

 contagious, in donkeys, (37) 692. 

 contagious, in horses, (36) 85. 

 contagious, treatment, (32) 682. 

 enzootic, in young pigs, (37) 477. 

 equine — see also Influenza, equine. 



treatment, (31) 87; (38) 788. 

 in cattle, studies, (26) 286. 

 in lower animals, (30) 579. 

 infectious, in cattle, (36) 675. 

 interstitial, in lungs of camels, (30) 680. 

 lobar, in domestic animals, (36) 676. 

 septic, in bovines, treatment, (31) 85. 

 septic, in horses, (38) 184. 

 studies, (37) 274. 



treatment, (26) 484; (27) 576; (31) 378. 

 Pneumonic plague, susceptibility of animals to, (28) 



180. 

 Pneumonitis in pigs, (33) 774 

 Pneumonyssus foxi n.sp., description, (34) 364. 

 Pneumotuber macaci, notes, (31) 356. 

 Poa— 



alpina, analyses, (31) 863. 



argentina, toxicity to sheep, (39) 85. 



ash constituents of, (30) 334. 



fertilis, pollination experiments, (37) 735. 



nevadensis, digestibility, (32) 770. 



pratensis, germination as affected by light, (30) 



531. 

 pratensis, germination tests, (30) 437; (31) 227. 

 spp., germination tests, (28) 327; (29) 143. 

 spp., seeding on ranges, (30) 35. 

 trivialis, composition and digestibility, (36) 469. 

 trivialis, drought resisting qualities, (28) 533. 

 Podabrus pruinosus, notes, (30) 459. 

 Podagrion mantidiphagum n.sp., description, (37) 



467. 

 Podisma frigida in Alaska, (34) 61. 

 Podisus maculiventris — 



destructive to pear slug, (26) 863. 

 notes, (29) 456. 

 Podocarpeae, root nodules of, (30) 523. 

 Podocarpineae, root nodules of, (27) 828. 

 Pododermatitis, suppurative, treatment, (40) 181. 

 Podogaster evetrivorus n.sp., description, (32) 852. 

 Podophyllum emodi, culture, (34) 346. 

 Podosesia syringae, notes, (28) 155; (36) 659. 

 Podospermum laciniatum, appearance in South 

 Australia, (38) 141. 



