704 



AGRICULTURAL INDEX 



Permeability — Continued 



Studies in permeability: the absorption of 

 acids by plant tissue. M. Hind, bibliog Ann 

 Bot 30:223-38 Ap '16 

 Studies in permeability; the action of various 

 organic substances on the permeability of 

 the plant cell, and its bearing on Czapek's 

 theoiy of the plasma membrane. W. Stiles 

 and Ing-var Jorgensen. bibliog Ann Bot 31: 

 47-76 Ja '17 

 Studies in permeability: the swelling of plant 

 tissue in water and its relation to tempera- 

 ture and various dissolved substances. W. 

 Stiles and Ingvar Jorgensen. bibliog il Ann 

 Bot 31:415-34 Jl '17 

 Studies in the permeability of the pulvinus 

 of mimosa pudica. V. H. Blackman and 

 S. G. Paine, bibliog Ann Bot 32:69-85 Ja '18 

 Studies of pi-otoplasmic permeability by meas- 

 urement of rate of shrinkage of turgid tis- 

 sues; the influence of temperatvire on the 

 permeability of pi'Otoplasm to water. E. M. 

 Delf. Ann Bot 30:283-310 Ap '16 

 Stvidy of permeability by the method of tissue 

 tension. S. C. Brooks, bibliog Am J Bot 3: 

 562-70 D '16 

 Peronospora 

 Studies in North American peronosporales. G. 

 W. Wilson, Mycol 10:168-9 My '18 

 Peroxidases 

 Mode of action of plant peroxidases. G. B. 



Reed. Bot Gaz 62:233-8 S '16 

 Supposed action of potassium permanganate 

 with plant peroxidases. H. H. Bunzell and 

 H. Hasselbring. Bot Gaz 63:225-8 Mr '17 

 Perrine, Ira B. 

 Perrine's big work in Idaho. Irr Age 33:14-15 

 Mr '18 

 Perry 

 Disorders of cider and perry. B. T. P. Barker 

 and O. Grove. J Bd Ag 22:939-49 Ja '16 

 Persea americana. See Avocados 

 Persia. See Gardens — Persia 

 Persian lambskin 



Karakul sheep. P. R. Marshall and others, il 



U S Ag Yearbook 1915:249-62 

 Karakul sheep and Persian lamb skins. G: H. 

 Dacy. il Nat Wool Grower 7:11-12 My '17 

 Persimmons 

 Persimmon in California. S. Fujii. il Cal State 

 Comm Hort B v 5:362-7 O '16 



Diseases and pests 

 Notes on some fungous diseases and a new 

 codling moth attacking the persimmon in 

 Japan. T. Tanaka. bibliog Cal State Comm 

 Hort B V 7:461-3 Jl '18 

 Perspiration 

 Sweating apparatus, il J Heredity 8:221-3 My 

 '17 

 Peru 



Kff' a/so subhead Peru under Agricultural 

 credit. Agriculture. Cattle, Food supplj'. 

 Horses, Irrigation 



Industries and resources 

 Markets for agricultural implements and ma- 

 chinery in Chile and Peru. F. H. von Motz. 

 (Special agents ser. no. 142) 48p '17 U.S. 

 Bureau of foreign and domestic commerce, 

 Washington, D.C. ; 5c Supt. of doc. 

 Pests 

 Some means of controlling insects, fungi, and 

 other pests in Porto Rico. R. H. Van Zwa- 

 luwenbvirg and H. E. Thomas. Porto Rico 

 Ag Exp C 17:1-30 '18 



See also Agricultural pests; Fungi; House- 

 hold pests; Parasites 



Petalody 



Petalization in the Japanese quince. A. A. 

 Hansen, il J Heredity 9:15-17 Ja '18 

 Petaluma, California 

 Biggest poultry metropolis in the world. Am P 

 Advocate 25:412 Ap '17 

 Peter's surprises; story. H. Brunkhurst. il 



Rural N Y 77:1002 Ag 24 '18 

 Petersburg, Virginia 

 New Bohemia. Virginia; colony of alien farm- 

 ers. R. G. Carroll, il map Country Gent 81: 

 1290-1 Jl 1 '16 



Petrified forests See Paleobotany; Trees, Fossil 

 Petroleum as fuel 

 Fuei oil. Am Fert 48:26 Mr 2 '18 

 Fuel oil for steam boilers. W. H, Culp. Am 



Flor 51:185-7 Ag 17 '18 

 Industrial alcohol; a substitute for petrol. J 

 Dept Ag S Australia 20:961-2 Jl '17 

 Petroleum as insecticide 

 Effects of petroleum oils on mosquito larvae. 

 S, B. Freeborn and R. F, Atsatt. J Econ 

 Entora 11:299-308 Je '18 

 Selection of petroleum insecticides. R. K. 

 Vickery. Cal State Comm Hort B v 6:384-7 

 O '17 



Selection of petroleum insecticides from the 

 cominercial point of view. P. R. Jones, Cal 

 State Comm Hort B v 7:189-91 Ap '18 

 Petroleum industry 

 Gasoline and the government. B, W. Currie, 

 il Country Gent 81:957-8-|-, 1014-15 My 6-13 

 •16 

 Pets 

 Animals on the suburban place, J: R, Mc- 



Mahon. il Country Gent 81:1293-4 Jl 1 '16 

 How the boy's calf happened. B. S. Van VIeet. 



Rural N Y 76:436 Mr 17 '17 

 Pets for profit, il Green's Fruit Grower 36:13 



Ag '16 

 Putting life into the garden. F, A. Waugh. il 

 Gard M 24:12-13 Ag '16 



See also Canaries: Cats: Dogs 

 Pe-tsai. See Chinese cabbage 

 Petunias 

 Petunia our best annual for bedding. G: W. 



Kerr, il Country Gent 83:33 Ap 27 '18 

 Petunia possibilities. M, R, Gray, il Country 

 Gent 82:152 Ja 27 '17 



Diseases and pests 

 Mosaic disease of tomatoes and petunias. 

 H. A.'Allard. il Phyt 6:328-35 Ag '16 

 Pew, W- H, 

 Prof. Pew, of Iowa state college resigns to go 

 on farm, por Swine World 6:10 Ag 'IS 

 Pewter 

 American pewter. A. Fearing, il Country Life 

 31:66-1- D '16 



Peyote 



Narcotic plants and stimulants of the ancient 

 Americans. W. E. Safford. il Smithsonian 

 In.st Rep (Washington, D. C.) 1916:398-405 



Peziza 



Photographs and descriptions of cup-fungi; 



peziza clvpeata. F. J. Seaver. il Mycol 8: 



235-8 S '16 

 Photographs and descriptions of cup-fungi — 



peziza domiciliana and peziza repanda, 



F. J. Seaver. il Mycol 8:195-8 Jl '16 

 Photographs and descriptions of cup-fungi; 



peziza proteana and peziza violacea. F. J. 



Seaver. il Mycol 9:1-3 Ja '17 

 Phaedon cochleariae. See Mustard beetles 



Phagocytes 

 Defense of the organism by phagocytes. Am 

 Vet M Assn J 50:133-6 N '16 

 Pharaoh's figs. See Sycamore figs 



Pharmacology 

 Mode of action of drugs with pharmacological 

 demonstrations. H. D. Bergman. la Ag Coll 

 OfTic Pub V 14, no 36:181-9 '16 

 Teaching pharmacology. H. Jensen. Am Vet 

 M Assn J 50:600-7 Ja '17 

 Phaseolus vulgaris. See Kidney beans 

 Pheasant IVlalays. See Cornish Indian fowl 



Pheasants 



Breeding of ringneck pheasants. E. A. 

 Quarles. il Field II 26:22-3, 126-7, 412 Ja-F, 

 My '18 

 Pheasants and agriculture. A, F. C.-H. Ever- 

 shed and C. Warburton. J Ag Sci 9:63-91 

 Ag '18 

 Two pheasant crosses. J: C. Phillips, il J 

 Heredity 7:12-16 Ja '16 

 Phenols. See Carbolic acid 

 Philadelphia. See Milk supply— Philadelphia 



