INDEX 
Achroia grisella — Page 
effect of nicotine sulphate on. 94 
nicotine in the tissues of. ioi, 104 
Acidity and Adsorption in Soils as Measured 
by the Hydrogen Electrode (paper). 123-145 
Adsorption and acidity in soils as measured 
by the hydrogen electrode. 123-145 
Allard, H. A. (paper): A Specific Mosaic Dis¬ 
ease in Nicotiana viscosum Distinct from 
the Mosaic Disease of Tobacco. 481-486 
Alway, F. J., and Clark, V. L. (paper): Useof 
Two Indirect Methods for the Determina¬ 
tion of the Hygroscopic Coefficients of 
Soils. 345-359 
Alfalfa. See Medicago saliva. 
Ammonium sulphate, effect of alkali salts on 
the nitrification of.426-428 
Amygdalus persica, host plant of Laspeyresia 
molesia . 373“378 
Ananas saiivus , chlorosis of. 84 
Aphidius nigripes, enemy of Macrosiphum 
gtanarium . 478-479 
Aphis — 
avenae, syn. Macrosiphum granarium. 
brassicae, nicotine in the tissues of. 103 
cereaiis, syn. Macrosiphum granarium. 
English grain. See Macrosiphum granar 
rium. 
granaria, syn. Macrosiphum granarium. 
hordei, syn. Macrosiphum granarium. 
Kochii, syn. Aphis malifoliae. 
malifoliae — 
dimorphic reproduction of. 337 
egg of— 
description of. 326 
hatching of. 326 
fall forms of. 337 ” 34 ° 
feeding habits of.340-341 
history and distribution of. 32s 
life history of. 342 
longevity of. 328 
methods of studying.325-326 
nymphal life of.327-328 
reproduction of. 328 
spring forms of.328-334 
stem mother of, description of.326-327 
summer forms of, description and life his¬ 
tory of...; 335“337 
synonymy of...*... 325 
mellificus, nicotine in the tissues of. 101- 
102,106-109 
populifoliae — 
effect of— 
fumigation of, with nicotine. 94-95 
nicotine dip on. 92 
nicotine spray on. 92-94 
pyri, syn. Aphis malifoliae. 
A phis —Continued. Page 
rosy apple. See Aphis malifoliae. 
rumicis — 
effect of fumigation with nicotine on. 95 
nicotine in the system of. 103 
sorbi, syn. A phis malifoliae. 
Apis mellifica, effect of nicotine-sulphate solu¬ 
tion on. 95 
Apium graveolens, host plant of Thielavia basi- 
cola . 293 
Apple-seed chalcid. See Syntomaspis dru- 
Parum. 
Apple. See Malus spp. 
Arackis hypogaea , host plant of Thielavia basi- 
cola . 294 
Aralia quinquefolia , host plant of Thielavia 
basicola . 293 
Armsby, H. P. ( Fries, J. A., and Braman, 
W. W. (paper): Energy Values of Red- 
Clover Hay and Maize Meal.379-387 
Aspergillus niger Group (paper). 1-15 
Aspergillus — 
niger group- 
bibliography of variant forms of. 10-15 
colony characters of. 6 
group characterization of. 6-15 
morphology of. 6-15 
spp., oxalic-add production of. 1-5 
Assimilation of Iron by Rice from Certain 
Nutrient Solutions (paper). 503-528 
Aster sp., host plant of Thielavia basicola . 293 
Astragalus sinicus, host plant of Thielavia 
basicola . 294 
Atteva aurea — 
effect ofmicotine sulphate upon the larvae of. 93 
nicotine in the system of. 104 
Autolysis, formation of hematoporphyrin in 
ox muscle during. 41-45 
Baker, A. C., and Turner, W. F. (paper): Rosy 
Apple Aphis. 321-344 
Beals.C. L-, and Lindsey, J. B.(paper): Chem¬ 
ical Composition, Digestibility, and Feed¬ 
ing Value of Vegetable-Ivory Meal. 301-320 
Bean. See Phaseolus vulgaris. 
Bee, honey. See A pis mellifica. 
Beetle, blister. See Epicauta Pennsylvania. 
Beetle, potato. See Leptinotarsa decendineata. 
Begonia — 
rubra, host plant of Thielavia basicola . 293 
semperflorens , host plant of Thielavia basi¬ 
cola . 294 
tuberhybrtda, host plant of Thielavia basicola. 293 
Beta — 
cycla, transpiration experiments with ab¬ 
scised leaves of. 530-536 
vulgaris, host plant of Thielavia basicola - 293 
66849°—17-2 (549) 
