672 



Journal of Agricultural Research 



Vol. XV 



Elymus — Page 

 canadensis, used in bridging-host experi- 

 ments 226-249 



tnacounii, source of Puccinia graminis iri- 



ijcj transferred to semicongenial hosts 242 



robustus used in bridging-host experiment, 



234-249 



virginicus, used in bridging-host experi- 

 ment 233-249 



Embryo of seeds, catalase activity of 146-147 



Endopliyllum semperviri, a?ciospore chains. . . 647 

 Endosperm of seeds, catalase activity of. .. 146-147 

 Energy expenditure consequent upon feed 



consumption 27S-280 



Engehnann spruce. See Picea engelmanni. 

 Entomophlhora sp., fungus attacking Miris 



dolahratus 197 



Enzyms in alfalfa silage 589-590 



Epicoccum sp., fungus isolated from Ipomoca 



batatas 357 



Erb, E. S., and Frear, William (paper): Con- 

 dition of Fertilizer Potash Residues in Ha- 



gerstown Silty Loam Soil 59-81 



Ercmocitrus glauca, susceptibility to Pseudo- 



monas citri 662-665 



Eriobotrya japonica, host fruit of puparia para- 

 sitized by Diachasma fullawayi 448 



Errata and authors' emendations iv 



Erysiphe graminis, tested on Bromus spp .... 222 

 Ether extract in dry matter of feeding stuffs. 270 

 Ethyl-acetate method, used in determining 



soil acidity 322-329 



Eugenia uniflora — 

 host fruit of puparia parasitized by Dia- 

 chasma fullawayi 448 



host plant of puparia parasitized by Dia- 

 chasma tryoni 429 



Eugenol, used to determine oxidase activity 



in normal and blighted spinach 377-380 



Eulophinae, one species natural enemy of 



Jlediterranean fruit fly 419-466 



Euproctis chrysorrhoca, used in experiments 



with Limnerium validum 458 



Evodia — 

 latifolia, susceptibility to Pseudoinonas 



citri 663-665 



ridleyei, susceptibility to Pseudomonas 



citri 663-665 



Excretion — 

 gaseous, in alfalfa hay and starch-feeding 



experiment 273, 2S4 



urinary, in alfalfa hay and starch-feeding 



experiment 273, 283 



Experiments in Field Technic in Plot Tests 



(paper) 251-262 



Experiments on the Value of Greensand as a 

 Source of Potassium for Plant Culture 



(paper) 483-492 



Fall webworm. See Hyphantria cunca. 

 Favus, skin disease caused by A chorion Schon- 

 Icinii — 



anatomical changes 416 



eazootiologj'' 416-417 



treatment 417-418 



Feed- 

 effect on brisket disease 411-414 



influence of quantity on digestibiUty 272 



relation to energy expenditure 278-280 



Page 

 Feeding stuffs, composition and energy con- 

 tent of 2 70 



Fermentation, methane, in alfalfa hay and 



starch 274-275 



Feroniella lucida, susceptibility to Pseudo- 

 monas citri 662-665 



Feronia limcmia, susceptibility to Pseudo- 

 monas citri 662-665 



Feroninae, susceptibility to Pseudomonas 



citri 662-665 



Ferric oxid in — 



mulch, plowsole, and subsoil 508-516 



soil, effect of drying 325-328 



Fertilizer potash residues in Hagerstown 



silty loam soil 59-81 



I Fescue, meadow. See Festuca elatior. 



Festuca — 

 j elatior — 



I food plant of Miris dolabratus 182 



reportedbridginghost for transfer of timo- 

 thy rust 222 



source of Puccinia graminis phleipratensis 



transferred to semi congenial hosts 244 



pratensis, source of Puccinia -graminis phlei- 

 pratensis transferred to semicongenial 



hosts 244 



Fir, Douglas. See Pseudotsuga iazifolia. 

 Fly, fruit. See Ceratitis capilata. 



Footroot of Ipomoea batatas 350 



Forests, damping-off in 525-558 



Formaldehyde — 



effect on Bacterium lachrymans 205 



remedy for favus 417-418 



Formol, used in determining nitrogen in 



spinach 400-404 



Fortuiiella — 

 hindsii, susceptibility to Pseiidomonas 



citri 662-665 



japonica, susceptibility to Pseudomonas 



citri 662-665 



Four-lined plant bug. See Poecilocapsus 



lineatus. 

 Frost injury to plants, growth in injected 



areas 87-S8 



Frear, William, and Erb, E. S. (paper): Con- 

 dition of Fertilizer Potash Residues in Ha- 

 gerstown Silty Loam Soil 59-81 



Freezing in plants 83-1 1 1 



Freezing-point method, determination of 



salt content of soil by 331-336 



Freezing points of juice from hardened and 



nonhardened plants 94-95 



French cherrj'. See Eugenia uniflora. 

 Fries, J. August, and Armsby, Henry Pren- 

 tiss (paper): Net Energy Values of Alfalfa 



Hay and of Starch 269-2S6 



Frost injury' — 

 first indications in cabbage and tomato. . . 85 

 hardening cabbage against — 



chemical changes 95-97 



physiological changes 92-93 



peroxidase changes in injured areas 88-90 



"Frosted grains," relation to after-ripening. . 153 

 Fruit fly. See Ceratitis capilata. 

 Fumigation of Cattleya Orchids with Hydro- 

 cyanic-Acid Gas (paper) 263-268 



