Oct. 7-Dec. 30, 1918 



Index 



681 



Teirastickus gtffardianus — Page 



life history 448-454 



natural enemy of Mediterranean fruit fly. 419-466 

 Tkevetia neriifoUa — 

 host of puparia parasitized by Diachasma 



fullawayi 44S 



host of larvae parasitized by Tetrastichus 



giffardianus 45^ 



Thymolphthalein, used in titration of silage 



extract 119-127 



Tilia americana, catalase and oxidase content 



of seeds •• 138 



Timothy- 

 rust, transferred by bridging hosts 222 



See Phleuni pratense. 



Titration of silage extract 116-130 



Toddalia asiaiica, susceptibility to Pseudo- 



monas citri .' 663-665 



Toluol- 

 effect on nitrogen-fixing organisms in soil 601-614 

 used in determining carbohydrates in nor- 

 mal and blighted spinach 3S3 



Tomato. See Lycopersicon esculentum. 



Toxity of alkali, effect of soil factors 287-315 



Trichinella spiralis, growth and molting. . . 467-482 

 Trichoderma — 

 koningi, isolated from — 



damped-off conifers 546-558 



Ipomoea batatas 360-361 



lignorum — 



isolated from damped-off conifers 539-558 



used in inoculation experiments with 



Ipomoea batatas 361 



Trichosanthes colubrina, free from attacks of 



Bacterium lachrymans 206 



Trichosporium sp., fungus isolated from Ipo- 

 moea batatas 364 



Trichothecium roseum, not cause of damping- 



off in conifers 540-558 



Trifolium — 

 incarnalum — 



catalase content of seeds 144 



diameter of cells in seeds 145 



pratense, used in experiments with green- 

 sand 485-492 



Trioxid, sulphur, in — 



grcensand 4S5 



normal and blighted spinach 371-375 



Triphasia trifolia, immunity to Pseudomo- 



nas citri 662-665 



Triticum — 

 aestivum — 



catalase activity of parts of seed 146 



used in bridging-host experiments 226-249 



used in experiments with greensand. . . 485-492 



yield on alkali land 302 



vuigare, reported infected with timothy rust 



through bridging host 222 



Page 



True, Rodney H., Black, Otis F., Kelly, 

 James W., Bunzell, H. H., Hawkins, Lon A., 

 Jodidi, Samuel L., and Kellogg, Edward 

 H. (paper): Physiological Studies of Normal 

 and Blighted Spinach 369-408 



True, Rodney H., and Geise, Fred W. (paper): 

 Experiments on the Value of Greensand as 

 a Source of Potassium for Plant Culture . . 483-492 



Tunis grass and sorghum hybrid, catalase 

 activity of seeds 146-147 



Turban squash. Cucurbita pepo var. condensa. 



Tyrosin— 

 used to determine oxidase activity in normal 



and blighted spinach 377-380 



test for oxidase in frozen cabbage leaves. ... 88 



Tyrosine, oxidase of Johnson grass not active 

 toward 162 



Urinary excretion, analysis in alfalfa hay and 

 starch-feeding experiment 273,283 



Vacuum process of fumigation with hydro- 

 cyanic-acid gas 133-136 



Vaseline, used in treatment of favus 417-418 



Verticillium, cinnabrinus, fungus isolated from 

 Ipomoea batatas 364 



Vitality of seeds, relation of catalase and 

 oxidase content to 137-174 



Water in soil, effect on fumigation with hydro- 

 cyanic-acid gas 133-136 



Water extract of silage — 



acidity 116-125 



method of making 114-115 



nitrogen in 125-132 



Watermelon. See Citrullus vulgaris. 



Wax on plant leaves, effect upon freezing 

 point of plant 86 



Webworm, fall. See Hyphantria cunea. 



Weimer, J. L., et al. (paper): Sweet-Potato 

 Storage-Rots 337-368 



West Indian gherkin. See Cucumis anguria. 



Wheat. See Triticum, aestivum. 



Wheat wireworm. See Agriotes mancus. 



White grub. See Lachnoslcrna Sp. 



White piae. See Pinus strobus. 



Whitespot, resemblance to damping-off in 

 conifer seedlings 551 



Wild cucumber. See Echinocystis lobata. 



Willard, H. F., and Pemberton, C. E. (paper): 

 Contribution to the Biology of Fruit-Fly 

 Parasites in Hawaii 419-466 



Wireworm, wheat. See Agriotes mancus. 



Witch grass. See Panicutn capillare. 



Xanthozylum rhetsa, immunity to Pseudo- 

 mcmas citri 663-665 



Yeasts in alfalfa silage 574-593 



Yellow pine. See Pinus ponderosa. 



Yew. See Taxus cuspidata. 



Zygorhyncfnis sp., fungus isolated from Ipo- 

 moea batatas 364 



Zymase, cause of alcohol in silage 590 



o 



