Oct. 1, 1919-Mar. 15, 1920 



Index 



611 



Page 



Ecpantheria deflorata at light traps 477-481 



Edgeworthia papyrifera, host of Sclerotium 

 rolfsii 128 



Edlefsen, N. E., et al. (paper): Determina- 

 tion of Normal Temperatures by Means of 

 the Equation of the Seasonal Temperature 

 Variation and a Modified Thermograph 

 Record 499-510 



Edson, H. A., and Shapovalov, M. (paper): 

 Temperature Relations of Certain Potato- 

 Rot and Wilt-Producing Fungi 511-524 



Effect of Lime upon the Sodiiun-Chlorid Tol- 

 erance of Wheat Seedlings (paper) 347-356 



Efifect of Oxidation of Sulphur in Soils on the 

 Solubility of Rock Phosphate and on Nitri- 

 fication (paper) 329-345 



Effect of the Relative Length of Day and 

 Night and Other Factors of the Environ- 

 ment on Growth and Reproduction in 

 Plants (paper) 553-6o6 



Effect of Variation in Moisture Content on 

 the Water-Extractable Matter of Soils 

 (paper) 139-143 



Elachiptcra nigriceps, found in oats 47° 



Elateridae spp., larva, experimental hosts of 

 Sorosporella uvella 432 



Elymus canadensis, host plant of Oscinisfrit . . 471 



Embryo sac, development in Zea mays. . . . 259-261 



Emmer. See Trilicum dicoccum. 



Endosperm, development in Zea mays 263 



Enzyms in mold spores 195-209 



Epilobium. angustifolium, host of Sclerotium 

 rolfsii 128 



Eragrosiis minor, host plant of Oscinisfrit. . . . 471 



Erigeron spp., hosts of Sclerotium rolfsii 128 



Erioboirya japonica, host fruit of Ceratitis 



capitata 442-446 



Estigmenc acraea — 



at light traps 477-481 



larva, not attacked by Ettbiomyia calosomae 

 in experiment 495 



Ether extract — 



in sunflower and corn silage 327 



in yellow-berry wheat 167 



Ethyl- 

 alcohol, effect on apples in storage 215 



butyrate, effect on apples in storage 216 



tnalate, effect on apples in storage 216 



Eubiomyia calosomae — 



description 484-487 



distribution 487-489 



hosts 495 



life history 490-495 



natural enemies 495 



Euchaetias egle at light traps 477-481 



Euclaena serrala at light traps 477-481 



Eugenia — 



jambos, host fruit of Ceratitis capitata 442-446 



uniflora, host fruit of Ceratitis capitata. . . 442-446 



Euparthenos nubilis at light traps 477-481 



European Frit Fly in North America (paper) 451-474 

 Euvanessa antiopa, larva, not attacked by 



Eubiomyia calosomae in experiment 495 



Euxoa tessellaia, host of Sorosporella uvella. 405 



Page 



Ewing, S., et al. (paper): Determination of 

 Normal Teperatures by Means of the Equa- 

 tion of the Seasonal Temperature Varia- 

 tion and a Modified Thermograph 

 Record 499-510 



Eipatorium ageraioides, host of Sclerotium 

 rolfsii 128 



Extraspinal nerve trunks, effect of dourine on 1 53 



Fagopyrum vulgare, effect of relative length of 

 day and night 600-601 



Fat in Sorghum vulgare 4-30 



Feed, brown and black alfalfa 303-304 



Fellia — 

 jacuUfera, hostolSorosporellauvella. . . 405,432-436 



spp., at light traps 477-481 



subgothica, host of Sorosporellauvella. . 405, 432-436 



Ferric — 

 chlorid, effect on sodium-chlorid tolerance 



of wheat seedlings 352 



oxid, effect of sodium-sulphate tolerance of 

 wheat seedlings 353 



Fertilization in Zea mays 255-266 



Fertilizer, effect of moisture in substrata, . . 357-378 



Fescue, meadow. See Festuca elatior. 



Fesluca elatior, host plant of Oscinis frit 471 



Fiber, crude — 



in brown and black alfalfa 301-303 



in sunflower and com silage 327 



Ficus carica, host of Sclerotium rolfsii 128 



Fisher, D. F., et al. (paper): Nature and 

 Control of Apple-Scald 21 1-240 



Fly, frit. See Oscinis frit. 



Formad, Robert J. (paper): Pathology of 

 Dourine with Special Reference to the 

 Microscopic Changes in Nerve Tissues and 

 Other Structures 145-154 



Formic acid. See Acid, formic. 



Fragaria spp., hosts of — 



Oscinisfrit 471 



Sclerotium rolfsii 128 



Freesia refracta, effect of relative length of 

 day and night 599 



French cherry. See Eugenia uniflora. 



Frit fly. See Oscinisfrit. 



Fniit fly, Mediterranean. See Ceratitis capi- 

 tata. 



Fungi — 



potato-rot, temperature relations 51 1-524 



wilt-producing, temperature relations... 511-524 



Further Studies of Sorosporella uvella, a 

 Fungous Parasite of Noctuid Larvae (paper) 399-440 



Fusarium — 

 acreynoniopsis, similarity to Sorosporella 



uvella 403 



coeruleum — 



effect on sugar content of host 277 



temperature relations 511-524 



discolor, var. suphureum, temperature 



relations 512-524 



eumartii, temperature relations 512-524 



oxysporum — 



effect on sugar content of host 277 



temperature relations 512-524 



radicicola — 



effect on sugar content of host 277 



temperature relations 512-524 



