1918] 



INDEX OF SUBJECTS. 



973 



Peanuts — Continued. Page. 



root nodules 451 



seeding experiments, Tex 32 



use by prehistoric Americans 167 



varieties .S3, 336 



varieties, Tex 32, 830 



varieties resistant to wilt 851 



whole pressed, analyses, Tex 369 



Pear — 



aphis, woolly, studies 560 



blight, notes 47, 848 



blight, resistance to, Tenn 350 



blight, studies 650 



blight, treatment. Can 545 



blossom weevil in Bessarabia 163 



diseases, notes, N.J 50 



scab, notes 852. 853 



thrips, remedies 259 



tree slug, notes 459 



Pears — 



conservation without use of 



sugar 716 



cross-pollination experiments — 345 



insects affecting 460 



insects affecting, U.S.D.A 843 



varieties, Tex 41 



Peas — 



culture experiments 132, 133 



fertilizer experiments 820 



field, as a forage crop, Hawaii- 827 

 field, as a pasture crop for pigs, 



U.S.D.A 470 



field, culture experiments, Can_ 634 



field, culture experiments, Mont- 333 

 field, culture for winter forage, 



Cal 735 



field, varieties. Can 634 



field, varieties, Minn 131 



field, varieties, U.S.D.A 431 



garden, selection experiments — 635 

 green, as meat substitute, U.S. 



D.A 166 



harvesting and storage, N.J 41 



heredity and variation in 822 



home drying, N.J 41 



seed testing, N.J 41 



varieties 33 



water requirement. Wash 227 



yields in Australia 133 



Peat — 



availability of nitrogen in 423 



bacterized, fertilizing value__ 120, 328 



beds, denitriflcation in 514 



lands or soils. (-See Soils, peat.) 



nucleic acid derivatives in 202 



production and use in United 



States 820 



Pecan — 



leaf case-bearer, studies, U.S. 



D.A 656 



oil, digestibility, U.S.D.A 868 



Pecans — 



Insects affecting 256, 762 



insects affecting, U.S.D.A 157 



Peetinophora gossypiella in Brazil- 562, 765 



Pediotilus — Page. 

 humanua (vestimcnti) , life his- 

 tory and remedies 76.'i 



spp., studies 159 



(Pegoraya) PhorMa ccpetorum. (See 

 Onion mat;got.) 



Pelargonium — 



disease, new 152 



poisoning by certain elements 628 



Pellagra — 



human-like, in dogs 360 



relation to diet 268, 568 



Pelletierine tannate as a vermifuge, 



U.S.D.A 884 



Pemphigidae of Japan 857 



Pemphigus fraxini-dipctalcB on olive, 



Cal 157 



Pemphrcdon, ucarctic species 660 



Penicillium — 



pfefferianum, description 448 



spp., toxicity to bees 564 



Pennisetum — 



ciliare, studies 66 



purpuremn, tests, Hawaii 828 



typhoidcum, analyses 368 



Pennsylvania — 



College, notes 98, 800 



Station, notes 198, 800 



Station, report 95 



Pentoses, determination in beet mo- 

 lasses 113 



Pepper — 



color inheritance in 443 



cress seeds, germinability 729 



disease, investigations, N.Mex 646 



diseases in India 547 



fruit rot, notes 250 



improvement, N.Mex 641 



wilts, notes 351 



Peppermint, culture in Indiana, Ind_ 246 



Perchloric acid, recovery from po- 

 tassium residues 312 



Periconia gbldeniana, notes 51 



Peridermium strobi, life history 



Can 646 



Permanganate solutions, prepara- 

 tion and liecping qualities 412 



Permeability, selective, in living 



cells 523 



Perocid, fungicidal value 151 



Peronoplasmopara sp. on liemp 753 



Per07i08pora — 



arborescens, notes 547 



sp. on hemp 753 



viticola, studies 754,755 



Perphosphates, use in agriculture-- 330 



Perry, analyses 114 



Persimmons, Japanese, culture ex- 

 periments, Tex 41 



Pestaloizia — 



briardi, notes 448 



funerea, notes 225, 849 



palmarum, notes 354, 758 



sp. on tea 354 



thew n.sp., description 648 



Petrel, leach, subspecies of 556 



