INDEX 



Page 

 Acer Tubrum — 

 character of trees of attacked by Agromyza 



aceris 313 



description of Agromyza aceris in ... . 313,315,316 



host of Agromyza aceris 3i3~3i8 



Acetaldehyde, toxicity to insects 367,370 



Acetic acid. See Acid, acetic. 



Acetone, toxicity to insects 367,370 



Acid — 

 acetic — 

 titrations of sodium nitrate-calcium car- 

 bonate solution with S5i 



toxicity to insects 367,370 



amino, percentage of groups in animal pro- 

 teins 63s 



carbonic — 



in alkali 342-344,349,352 



in ash 340-341, 349, 352 



in gypsum 350 



in sandstone 337,344-345,349,352 



in shale 338-340,349,352 



in soil 341,343-344,348 



cyanuric — 



comparison with tetracarbonimid 87-88 



isolation from soil 85-92 



hydrochloric, titrations of sodium chlorid- 



calcium carbonate solutions with 554 



mineral, effect on reproduction of cattle. . 186-187 

 nitric, titrations of sodium nitrate-calciimi 



carbonate solution with 554 



oxalic, titrations of sodiiun nitrate-calcium 



carbonate solutions with 552-553 



percentage in alfalfa silage 276, 278, 



284-285,287,291 



production of, in silage 75-83 



sulphuric — 



in alkali 342-344,349,352 



in ash 340-34i>349,352 



in gypsum 35° 



in sandstone 337,344-345,349,352 



in shale 338-340,349,352 



in soil 341,348 



titrations of sodium sulphate-calcium car- 

 bonate solutions with 554 



toxicity to insects 367,368,370 



valeric, toxicity to insects 367,368,370 



Aggregate- 

 bituminous — 



eflect of siu-face character of rock on 3 28 



physical tests 328 



toughness ' 319^330 



effect of grading on value 263-274 



A gromyza — 

 aceris — 



character of trees attacked by 313 



n. sp 313,315,316 



parasite of Acer rubrum 3i3"3i8 



amelanchieris — 



character of trees attacked by 313 



n. sp 314 



parasite of Amelanchier canadensis 313-318 



seasonal history 3i4,3iS,3i7 



Page 



Alcohol, toxicity to insects 367,369,370 



Alfalfa. See Medicago sativa. 

 Alfalfa silage. See Silage, alfalfa. 

 Alkali- 

 black — 



effect of hardpan on formation 586-588 



formation 541-590 



See also Sodium carbonate. 



crusts in irrigated regions 578-580 



formation by soluble salts 334-352 



origin 331-353 



soluble salts in 342-344,347,352 



Allard, H. A. (paper): Further Studies of the 



Mosaic Disease of Tobacco 615-632 



Alway, F. J., and McDole, G. R. (paper): 

 Relation of Movement of Water in a Soil to 

 Its Hygroscopicity and Initial Moist- 



ness 391-428 



AUyl isosulphocyanate, toxicity to insects . . . 367, 



368,370 

 Amelanchier canadensis, host of Agromyza 



amelanchieris 313-318 



Amino acid. See Acid, amino. 



Amino nitrogen, in alfalfa silage 286-287, 290 



Ammonia, effect of paraffin on 355-363 



Amyl — 



acetate, toxicity to insects 367, 368, 370 



alcohol, toxicity to insects 367, 370 



nitrite, toxicity to insects 367,370 



valerate, toxicity to insects 367,368,370 



Andropogon sorghum — 



variation of dry matter in leaves 11-46 



variation of water in leaves 1 1-46 



Angitia plutellae — 



host of Spilochalcis delira 8 



parasite of Plutella maculipennis 8 



Animal proteins, food value 633-637 



Antirrhinum spp., host plant of Tarsone^nus 



pallidus 377 



Aphis — 

 chrysanthemtmi. See Macrosiphum san- 

 borni. 



effectiveness of quassia extract on 497-531 



pear-root, European. See Eriosoma lanur 



ginosa. 

 spinach. See Myzus persicae. 

 woolly pear. See Eriosoma pyricola. 

 Armsby, H. P.. and Fries, J. A. (paper): 

 Energy Values of Hominy Feed and Maize 



Meal for Cattle 599-613 



Arsenate — 

 calcium — 



burning effect of spray on plant 206 



toxicity 199-207 



lead, toxicity 199-207 



lead hydrogen, toxicity 199-207 



Ash- 

 alkali in 344, 3S» 



soluble salts in 340-34i>346,352 



Avena sativa nuda X Avetta sativa patula, 



crossing experiments 293-312 



Avena sativa patula X Avena sativa nuda, 

 crossing experiments 293-312 



(649) 



