SUBJECT INDEX 



425 



Pepper — Continued, 

 culture — continued. 



experirnpnts, (31) 330; (37) 742. 



in Burma, (29) 736. 



in India, (.39) 445. 



in Mexico, (29) 41. 

 destruction by black scale, (26) 555. 

 disease, description, (26) 448. 

 disease, investigations, (38) 646. 

 diseases in India, (38) 547. • 



diseases, studies, (39) 455. 

 fertilizer experiments, (31) 330; (37) 215, 343, 742. 

 fruit disease, notes, (34) 442. 

 fruit rot, notes, (36) 48; (38) 250. 

 fungus disease affecting, (31) 542. 

 greenhouse, carbon dioxid for, (39) 38. 

 heredity in, (27) 740; (28) 739; (30) 342. 

 host plant of fruit flv, (26) 758. 

 hydridization experiments, (29) 434; (30) 533. 

 improvement, (38) 641. 



industry in Banca, Dutch East Indies, (35) 835. 

 insects affecting, in Banca, Dutch East Indies, 



(35) 835. 

 irrigation experiments, (29) 638. 

 mosaic disease, characteristics, (31) 345. 

 mosaic disease, notes, (30) 451. 

 nematodes affecting, (28) 740. 

 paprika, culture, (30) 343. 

 parthenogenesis in, (29) 837. 

 red, composition, (29) 263. 

 response to carbon dioxid, (40) 820. 

 shading experiments, (39) 748. 

 Spanish, canning and use, (33) 297. 

 tree caterpillar, larval habit, (31) 752. 

 tree caterpillar, notes, (28) 557; (36) 654. 

 tree, crown gall affecting, (28) 447. 

 value in the diet, (29) 664. 

 weevO, notes, (28) 657. 

 white, examination, (29) 463. 

 wilt, notes, (36) 449; (.38) 351. 

 wilt, studies, (40) 157. 

 Peppermint- 

 culture, (34) 151. 

 culture experiments, (29) 331. 

 culture in Indiana, (38) 246. 

 essential oil of, (26) 504. 

 extract, analyses, (35) 663. 

 extract, methods of analysis, (29; 798. 

 oil, factors affecting composition. (36) 344. 

 oil industry in Japan, (30) 710. 711. 

 rust, notes, (33) 848. 

 Pepsin— 



and chymosin, identity, (26) 107. 



and trypsin, reaction between, (31) 609. 



as affected by organic acids, (36) 763. 



as rennet substitute, (34) 574; (37) 576; (39) 884; 



(40) 80. 

 digestion of casein by, (28) 407. 

 In eggs, (28) 64. 

 protein cleavage by, (30) 108. 

 separation from rennin, (26) 803. 

 studies, (26) 205; (40) 504. 

 use in cheese making, (37) 175, 373, 778, 875. 

 Peptic- 

 activity, determination, (31) 504. 

 proteolysis as affected by heat, (31) 107, 860. 

 Peptid, new, isolation, (40) 611. 

 Peptids— 



detection, (28) 503. 



determination in proteolysis, bloods, and urine, 



(31) 212. 

 effect on cobra venom hemolysis, (36) 276. 

 Peptone- 

 action as affected by distribution in soils, (35) 



518. 

 anaphylatoxin, studies, (37) 581. 

 assimilation by plants, (26) 32. 

 decomposition by Streptothrix, (27) 020. 

 Peptones — 



activation by lecithin, (35) 881. 

 determination in proteolysis, bloods, and urine, 



(31) 212. 

 effect on — 



action of alcohol on plant cells, (34) 333. 



baking quality of flour, (26) 356; (30) 555. 



determination of sugar, (29) 613. 710. 



oxidation of sulphur in soils, (30) 222. 



secretion of diastase by fungi, (31) 13. 



toxicitv of inorganic salts, (31) 730. 



toxicity of nitrates, (30) 227. 



Peptones— Continued . 



in soils, (34) 325. 



nitrification in soils, (26) 722. 



role in glycogen formation, (31) 763. 



synthesis by means of enzyms, (34) 70S. 



transformation in intestinal canal, (31) 468. 

 Peranabrus scabricollis, notes, (37) 54. 

 Perchlorates, determination in — 



Chile saltpeter, (37) 111. 



presence of chlorids and chlorates, (26) 511. 

 Perchloric acid — 



preparation from perchlorates, (40) 13. 



recovery from potassium residues, (38) 312. 

 Perclista quercus n.sp., description, (30) 60. 

 Percolation — 



lateral, in soils, (31) 216. 



losses of moisture and plant food by, (33) 619 

 Percrystallization, notes, (37) 409. 

 Perdita, notes, (39) 566. 

 Perdix perdix, feeding habits, (30) 454. 

 Peregrinus maidis — 



as corn pest, (31) 249. 



notes, (27) 657. 

 Perennials — 



culture, treatise, (27) 645. 



for Illinois, (28) 840. 



hardy, treatise, (29) 840; (35) 345. 



herbaceous, rest period in, (33) 223. 



propagation, (28) 840. 



varieties for Illinois, (34) 45. 



Perezia — 



legeri n.sp., description, (40) 264. 



mesnili n.sp., description, (40) 65. 

 Perfume plants, treatise, (36") 142. 

 Perhydridase, studies, (26) 310. 



Perhydrol — 



as a mouth wash in milk testing, (26) 712. 



nature and use, (26) 580. 

 Pericarditis, traumatic, paper on, (27) 576. 

 Periconia goldeniana, notes, (38) 51. 

 Pericystis alvei, notes, (28) 562. 

 Peridental membrane, relation to mastication, (26) 



360. 

 Perideraeus granellus, notes, (33) 658. 



Peridermium — 



acicolum on Pinus resinosa, (36) 454. 



balsameum, occurrence in Washington, (36) 651. 



cahfornicum n.sp., description, (31) 845. 



cedri, notes, (27) 654; (32) 346. 



cerebrum on jack pines, (33) 351. 



cerebrum, studies, (40) 349. 



comptoniae n.comb., notes, (31) 348. 



comptoniae, notes, (31) 641. 



filamentosum, notes, (39) 859. 



fllamentosum on yellow pine seedlings, (34) 649. 



fusiforme and P. cerebrum, notes, (31) 445; (39) 



859. 

 guatemalense n.sp., description, (31) 845. 

 harknessii— 



and Cronartium quercuum, association, 

 (34) 849; (36) 454, 746. 



infection experiments, (30) 745. 



notes, (39) 859. 

 inconspicuum n.sp., description, (27) 746. 

 laricis, description, (29) 554. 

 montanum and P. acicolum, identity, (35) 851. 

 n spp., descriptions, (39) 30. 

 occidental n.sp., studies, (39) 859. 

 peckii, notes, (27) 648. 

 pinl, notes, (28) 750. 

 pini, studies, (31) 153. 

 pyriforme— 



and Cronartium comandrae, identity, (34) 

 539 



new hosts, (27) 649; (34) 354. 



notes, (34) 242; (39) 859. 

 ribicola, description, (37) 351. 

 sp., notes, (30) 647. 

 spp., alternate forms. (37) 844. 845. 

 spp., infection experiments, (30) 537. 

 spp., inoculation experiments, (32) 647. 

 spp.! notes, (26) 57; (27) 252; (29) 451, .547; (31) 



348; (39) 859. 

 spp., on pines, (31) 845. . . 



stalactiforme, infection of Castilleia minlata 



with aecidiospores of, (30) 148. 

 stalactiforme, notes, (ZO) 538. 

 strobi, see White pine blister rust. 

 Peridermiums from Ohio, (40) 645. 



52831—261- 



-28 



