SUBJECT INDEX 



455 



Podosphaera— 

 leucotricha — 



notes, (28) 447; (33) 846; (40) 251. 

 parasite of, (32) 544. 

 treatment, (39) 856. 

 oxycanthae, notes, (32) 641; (40) 63. 

 oxycanthae, treatment, (26) 750. 

 spp., descriptions and treatment, (31) 748. 

 spp., notes, (34) 247. 

 spp., studies, (33) 347. 

 Podosporiella — 



n.sp. (?) on wheat, (33) 848. 

 verticillata n.sp., description, (34) 644. 

 Podothrips semiflavus n.g. and n.sp., description, 



(30) 658. 

 Poecilanthrax, notes, (37) 565. 

 Poecilocapsus lineatus, notes, (28) 158; (33) 58. 

 Poecilocoris— 



latus, notes, (28) 241; (29) 446. 

 spp., notes, (30) 853. 

 Poecilonota decipiens, notes, (30) 455. 

 Poeciloscytus basalis, relation to fire blight, (33) 744. 

 Pogonarthria fleckii, analysis and digestibility, (32) 



167. 

 Pogonomyia, anthomyid genus, (40) 357. 

 Pogonomyrmex — 



barbata, notes, (29) 453. 

 barbata, remedies, (32) 549; (35) 551. 

 barbatus molefaciens, studies, (27) 263. 

 barbatus rugosus, remedies, (33) 57. 

 californicus, notes, (26) 483. 

 Pohna grass, analyses, (28) 768. 

 Poison- 

 extraction from brain, (28) 280. 

 ivy, constituents of, (36) 502. 

 ivy, fat of, (38) 202; (39) 27. 

 oak, toxicity, (36) 501. 

 Poisoning, symptoms and therapy, (32) 578. 

 Poisonous animals of desert, (39) 153. 

 Poisonous plants, see Plants, poisonous. 

 Poisons — 



detection, (32) 578. 



dectection in water, (34) 410. ■* 



economic, consumption and cost in California, 



(40) 59. 

 effect on — 



apples and potatoes, (33) 329. 

 germ cells, (33) 368. 

 germ cells of fowls, (37) 370. 

 microorganisms, (32) 308. 

 seeds, (29) 529. 



vitality of male rabbits, (31) 876. 

 mineral, detection in organic matter, (26) 206. 

 nonprotein, chemical defense against, (32) 78. 

 organic, detection in food, (31) 207. 

 organic, effect on plants, (34) 526; (39) 224; (40) 



520. 

 protective action of diet against, (40) 465. 

 treatise, (26) 373. 

 Pokeweed— 



critical flowering and fruiting temperatures, 



(38) 330. 

 mosaic disease, studies, (39) 549. 

 notes, (30) 145. 

 Polanisia liideritziana, analyses and digestibility, 



(27) 871; (32) 167. 

 Polar explorers, food for, (32) 857. 

 Polarimetry, book on, (38) 803. 

 Polariscope, sodium lamp for, (34) 804. 

 Polarization, Clerget, source of error in, (32) 717. 

 Polarized light, chemical effects, (31) 759. 

 Pole holes, digging with dynamite, (36) 89. 

 Polenske number, determination, (30) 114; (31) 811. 



industry in Canada, (26) 242; (32) 238; (37) 245; 



(38) 147. 

 industry in 1915, (36) 844. 

 preservation, (26) 242, 644; (27) 846; (30) 146, 



239, 845; (33) 544; (37) 651. 

 prices in Canada and United States, (26) 242. 

 production in Canada, (28) 645; (30) 744. 

 telephone, tests, (30) 843. 

 use in Canada, (29) 843. 

 Poliomyelitis- 

 acute, notes, (26) 676. 

 and dog distemper, relationship, (30) 781. 

 bodies, action of human and rabbit blood on, 



(40) 287. 

 in dogs, (40) 483. 



horses in India, (38) 287. 



Poliomyelitis— Continued. 



in lower animals and transmission, (35) 280. 



sheep, (29) 081. 

 relation to rats, (40) 85, 546. 

 relation to stable flies, (29) 559, 560. 

 studies, (39) 186. 

 transmission, (30) 753. 

 transmission by^ 



insects, (28) 753; (38) 262. 

 Lyperosia irritans, (31) 551. 

 rats and insects, (36) 354. 

 stable flies, (28) 160, 161, 560. 

 Polistes— 



gallica, notes, (27) 802. 

 hebraeus, notes, (38) 164. 

 raetricus, life history and habits, (37) 855. 

 spp., notes, (28) 451. 

 Political economy instruction in agricultural 



schools, (34) 693. 

 Pollen— 



and pollen disease, studies, (39) 803. 



as aflected by sulphurous acid, (27) 635. 



development in grapes, (32) 627. 



extract preparations, (40) 284. 



formation, (34) 525; (35) 523. 



germination, (29) 437. 



grain as a colloidal system, (36) 526. 



grains, development in citrus fruits, (28) 524. 



grains, germination experiments, (35) 731. 



mother cells, cytokinesis, (40) 517. 



red clover, physiology of, (29) 829. 



removal by Syrphidae, (39) 734. 



sterility in relation to crossing, (35) 731. 



toxin, studies, (29) 377. 



tube development in microspore of Pinus syl- 



vestris, (40) 223. 

 tube protoplasm, studies, (40) 28, 818. 

 viability, (32) 534. 

 vitality, (29) 41, 326. 

 water-soluble B in, (40) 564. 

 Pollenia rudis— 



hibernation, (34) 254; (38) 262. 

 life history, (36) 359. 

 relation to fire blight, (36) 351. 

 studies, (37) 665. 



susceptibility to nicotin, (33) 256. 

 Poll-evil— 



etiology and treatment. (26) 484. 

 handbook, (39) 190. 

 immunization, (31) 378; (34) 580. 

 Pollination — see also specific plants. 

 bibliography, (29) 437. 

 controlled, in Nicotiana, (40) 131. 

 effect on fruit of Diospyros kaki, (31) 440. 

 improved technique, (40) 627. 

 physiology of, (34) 628. 

 role of insects in, (40) 055. 

 Pollinia fulva, analyses, (30) 565. 

 Pollinopsis betae n.g. and n.sp., description, (35) 



454. 

 Polyarthritis— 



in newborn calves, (40) 887. 

 in pigs, notes, (36) 280. 

 in sheep, (31) 286. 

 Polycaon contertus, notes, (27) 857; (29) 657; (36) 



58; (38) 157. 

 Polychaetoneura elyii n.g. and n.sp., description, 



(31) 456. 

 Polychrosis— 

 botrana— 



biology and remedies, (34) 654. 

 control, (39) 765. 

 monograph, (34) 553. 

 notes, (26) 655; (28) 559; (35) 54, 257. 

 parasites of, (35) 253, 659. 

 polyphagous habits, (32) 554. 

 remedies, (29) 655; (34) 63; (40) 167. 

 viteana, see Grape berry worm. 

 Polyctenidae— 



adaptation to parasitic life, (27) 656. 

 viviparity in, (31) 452. 

 Polycystus— . 



clypeatus n.sp., description, (39) 869. 

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



^°Hmpr^Sons, notes, (29) 252; (35) 54; (36) 46«. 



impressifrons, studies, (36) 859; (37) 359, 



spp., habits, (36) 58. 

 Polyembryony in Quercus alba, (40) 226. 



