SUBJECT INDEX 



473 



Protoplasm— Continued . 



permeability to water, (36) 823. 

 physical properties, interpretation, (37) 325. 

 relation to environment, (28) 326. 

 swelling, studies, (40) 520. 

 water absorption by, (38) 502. 

 Protoplasmic — 



contractions resembling plasmolysis, (29) 134; 



(30) 130. 

 Streaming, stimulation by light rays, (35) 130. 

 Protopulvinaria spp., parasites of, (26) 553. 

 Protozoa — 



as affected by heat, (31) 26. 



counting, new method, (33) 809. 



determination in soils, (29) 123. 



disease transmitting, treatise, (31) 478. 



effect on ammonification, (28) 719. 



effect on bacteria in soils, (2S) .330. 



flagellated and ciliated, tissue-invasive powers, 



(40) 186. 

 flagellated, role in bird diseases, (36) 483. 

 flagellates in cecal and liver infections in birds, 



(36) 781. 

 from sewage-sick soils, notes, (29) 316. 

 in rice soils, (33) 23. 

 In ruminants' stomachs, (30j 577. 

 in soil — 



activity, (34) 422; (36) 21fi. 

 as afleeted by lime, (30) 127. 

 as affected by toluene, (36) 814. 

 as reduction index, (40) 214. 

 counting, (30) 826; (3.3) 809; (34) 513; (39) 814. 

 determination, (29) 123. 

 inactivity, (30) 322. 

 notes, (30) 399; (31) 420. 

 paper on, (30) 399. 

 review of investigations, (37) 213. 

 separation, (34) 217. 



studies, (31) 26, 420, 516; (32) 320, 619; (33) 

 621; (.34) 20; (35) 214. 

 infecting bees, (27) 459. 

 infectious, notes, (29) 676. 

 intestinal, transmission by flies, (38) 563. 

 life history, (38) 580. 

 media for multiplication of, (33) 809. 

 of vertebrates and invertebrates, (32) 177. 

 parasitic in Bufo regularis, (30) 680. 

 pathogenic — 



handbook, (26) 246, 865; (27) 460, 551. 

 notes, (26) 276. 



review of investigations, (28) 178. 

 textbook, (28) 78; (36) 177. 

 treatise, (27) 575. 

 relation to — 



plant growth, (32) 423. 

 soil bacteria, (29) 123; (.30) 517; (33) 515; (34) 

 326; (36) 322, 422, 518, 622. 

 role in plants, (33) 425. 

 separation of species, (27) 780. 

 so-called "infective granules" of, (35) 280. 

 toxic action of copper compounds of amino 



acids on, (37) 375. 

 treatise, (29) 360. 

 Protozoan — 



diseases, immunization, (26) 676. 

 diseases, in Tonkin, (26) 677. 

 germ plasm, notes, (26) 876. 

 infections, infective granule in, (26) 883. 

 infections of intestinal tract,goblet cells in,(37)280. 

 Protozoology- 

 review of literature, (27) 77. 

 textbook, (27) 3.56. 

 treatise, (26) 882. 

 Provancher, Abbe, biographical sketch, (40) 259. 

 Provender, analyses, (26) 72, 665; (28) 265, 364, 465; 

 (30) 67; (32) 259; (34) 169, 371, 467; (35) 374, 562; 

 (38) 369, 665. 

 Prunase, occurrence in Java beans, (28) 502. 

 Prunasin as affected by enzyms, (28) 503. 

 Prune — 



aphis, remedies, (32) 649. 

 blight, notes, (34) 648. 

 brown rot- 

 investigations, (35) 249. 

 notes, (28) 544. 

 treatment, (32) 645; (38) 454. 

 industry in Oregon, (29) 148. 

 juice, detection in vanilla extracts, (26) 111. 

 kernels, microscopic identification, (28) 565. 

 Monilia blight, studies, (34) 351. 



Prune— Continued. 



mushroom root rot, notes and treatment, (28) 



748. 

 orchards- 

 protection against frost, (29) 147. 

 renovation, (37) 41. 

 root disease, notes, (36) 649. 

 rust in southern California, (34) 352. 

 rust, notes, (36) 845. 



stones, hydrocyanic acid content, (27) 11. 

 twig borer, notes, (32) 651. 

 twig miner, notes, (35) 2.53. 

 Prunes — 



ash analyses, (29) 861. 

 bacterial gummosis, (39) 151. 

 benzoic acid in, (33) 15. 

 brown bark spot on, (39) 251. 

 bud injury, (40) 52. 



composition as affected by irrigation, (29) 236. 

 culture, (32) 45. 

 culture in New York, (35) 836. 

 culture in southern Utah, (30) 41. 

 culture in southwestern Washington, (31) 441. 

 destruction by black scale, (26) 555. 

 dried- 

 analyses, (30) 861. 

 inoculation experiments with brown rot 



fungus, (33) 247. 

 microbiology, (34) 460. 

 preparation and use, (29) 462. 

 drying, (29) 148; (37) 114, 715. 

 drying methods, (27) 146. 

 effect on composition of urine, (31) 761. 

 evaporation, (39) 16. 

 fertilizer experiments, (37) 41. 

 frost injury, (37) 344. 

 handling and shipping (34) 534. 

 insects affecting, (27) 857. 

 pear thrips affecting, (40) 547. 

 pollination, (30) 1.39; (40) 836. 

 pollination bv bees, (36) 536; (38) 747. 

 pruning, (33) 8.37; (35) 41. 

 sodium nitrate for, (40) 741. 

 tree census in Washington, (40) 340. 

 Pruning — see aho special trees and shrubt. 

 directions for, (26) 539. 

 effect on — 



fruit bud formation, (33) 735; (37) 646. 

 set of fruit, (38) 42. 

 sweet peas and tomatoes, (29) 339. 

 investigations, methods, (37) 239. 

 monograph, (33) 837. 

 notes, (28) 6.39; (.32) 234, 743, 751, 835; (33) 339; 



f34) 833; (37) 344. 

 paper on, (38) .540. 



problems in Hood River Valley, (37) 41. 

 summer, (.33) 98; (35) 696. 

 treatise, (33) 838; (37) 41, 242, 344; (38) 539. 

 wounds, dressing for, (32) 835; (38) 143 

 Prunus— sf? also Cherries and Plums, 

 breeding experiments, (28) 540. 

 crown gall resistance in, (36) 3.52; (37) 655. 

 domestiea, silver leaf disease of, (34) 648. 

 eriogyna n.sp., description, (30) 41. 

 hybrids, heredity in, (28) 540. 

 laurocerasus, hydrocyanic acid in, (29) 133. 

 mume, chloranthy of, (26) 343, 

 native American species, (32) 837 

 new canker disease of, (37) 251. 

 oils, composition, (36) 803. 

 pubescent-fruited species of Southwestern 



States, (30) 41. . 



spinosa, seashore thicket formation by, (d5) (W5. 

 spp., crown gall affecting, (28) 447. 

 tomentosa, culture experiments, (27) 343. 

 virginiana, black knot of, (30) 750. 

 Prussian blue — 



determination in tea, (33) 15 

 fertilizing value, (26) 323. 

 Prussian Chamber of Agriculture, organization ana 



status, (31) 193. 

 Prussic acid, fee Hydrocyanic acid. 

 Psacaphora— . . ,„,^ _^„ 



cambiella n.sp., description, (33) '48. 

 engelella, life history, (33) 655. 

 Psalidium maxillosum, notes, (31) 655. 



campestris, composition, (26) 802. 



campestris, prevalence in South Africa, (28) «i. 



sp., zymase formation in, (39) 733. 



