Oct. 7-Dec. 30, 1918 



Index 



673 



Page 

 Fumigation with hydrocyanic-acid gai, effect 



on subterranean larvae 133-136 



Fungous parasites, cause of dampiag-off in 



conifers 521-558 



Further Data on the Susceptibility of Ruta- 



ceous Plants to Citrus-Canker (paper) 661-666 



Further Studies on Brisket Disease (paper). 409-414 

 Fusarium — 

 acuminalum — 

 fungus used in inoculation experiments 



with Ipomoea batatas 360 



not cause of damping-off in conifers 540-558 



blasttcola, cause of damping-ofi in conifers. 537-546 

 caudatum, fungus isolated from Ipomoea 



batatas 363-3''4 



culmoTutn, fungus used in inoculation ex- 

 periments with Ipomoea batatas 359-3^0 



hyperoxysporum, fungus isolated from Ipo- 

 moea batatas 3'53-3<54 



moniliforme, cause of damping-off in coni- 

 fers 522-558 



orthoceras, fungus isolated from Ipomoea 



batatas 363-364 



oxyspoTum — 



fungus isolated from Ipomoea batatas 360 



isolated in sweet-potato storage-rots 338, 



360, 363-364 

 parasiticum, cause of damping-oS in coni- 

 fers 537-546 



pint, cause of damping-off in conifers 53 7-546 



solani, cause of damping-ofT in conifers. . . 540-558 

 vasinfectum. — 



cause of damping-off in conifers 537-546 



fungus isolated from Ipomoea batatas 364 



ventricosum, cause of damping-off in coni- 

 fers 522-558 



Fusoma spp., reported cause of damping-off 



in conifers 537-546 



Gainey, P. L. (paper): Effect of Carbon Di- 

 sulphid and Toluol upon Nitrogen-Fixing 



and Nitrifying Organism.s 601-614 



Galesus silveslrii, parasite of Mediterranean 



fruit fly 433-466 



Gas, hydrocyanic-acid — 



effect on subterranean larvae 133-136 



fumigation of cattleya orchids 263-268 



Gaseous excretion in alfalfa hay and starch 



feeding experiment 273 , 2S4 



Gastric digestion, effect on larva; of Trichi- 



nella spiralis 470-471 



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

 Experiments on the value of Greensand as 

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



Gelatin liquefiers in alfalfa silage 581-590 



Geranium, production of injected areas due 



to freezing ■ 86 



Germinator, effect on catalase activity of seeds 



156-159 

 Germination, effect on oxidase activity of 



seeds 166-167 



Gherkin, West Indian. Cucumis anguria. 

 GMerella saubinetii, fungus used in inocula- 

 tion experiments with Ipomoea batatas. . . 357-358 



Glauconite, applied to farm crops 4^3-492 



Glover, George H., and Newsom, L. E. (pa- 

 per): Further Studies on Brisket Disease. 409-414 



Glucose in — Page 



hardened and nonhardened cabbage 95 



normal and blighted spinach 383 



Glycerin, used in determining carbohydrates 

 in normal and blighted spinach 383 



Glycosmis pentapkylla, immunity to Pseudo- 



Tnonas citri 664-665 



Gourd — 

 calabash. See Lagenaria vulgaris. 

 hedgehog. See Cummis dtpsaceus. 

 mandera. See Cucumis acutangulis . 

 See Cucurbita pepo var. ovifera. 



Gowen, John W. (paper): Studies in Inherit- 

 tance of Certain Characters of Crosses be- 

 tween Dairy and Beef Breeds of Cattle. . . . 1-58 



Grass — 

 Bermuda. See Capriola dactylon. 

 Johnson. See Sorghum halepensis. 

 orchard. See Dactylis glomerata. 

 Sudan. See Andropogon halepensis sxidan- 



esis. 

 Tunis-sorghum hybrid, oxidase activity. 161-169 

 witch. See Panicum capillare. 



Gray-damsel bug. See Reduviolusferus. 



Green Jime beetle. See Cotinus nitida. 



Greensand, source of potassiiun 483-493 



Grub, white. See Lachmosterna sp. 



Guaiacol, used to determine oxidase activity 

 in normal and blighted spinach 377-380 



Guinea pig, weight of heart 411 



Gypsum, used in experiments with plow- 

 sole 514-51S 



Gypsy moth. See Porthetria dispar. 



Halpin, J. G., and Beach, B. A. (paper): Ob- 

 servations on an Outbreak of Favus 415-418 



Halticus citri, pest of beans i8t 



Hardening Process in Plants and Develop- 

 ments from Frost Injury (paper) 83-11 1 



Hardiness to frost, method of testing 93 



Hardiness to frost, time and temperature 

 factors in acquiring or losing 93-94 



Harrington, Georse T., and Crocker, 'William 

 (paper): Catalase and Oxidase Content of 

 Seeds in Relation to Their Dormancy, Age, 

 Vitality, and Respiration 137-174 



Harris, F. S., and Pittman, D. W. (paper): 

 Soil Factors Affecting the Toxicity of Alkali 



287-319 



Harter, L. L., Weimer, J. L., and Adams, J. 

 jr. R. (paper): Sweet- Potato Storage-Rots 



337-368 



Hartley, Carl, and Merrill, T. C. (paper): 

 Seedling Diseases of Conifers 521-558 



Harvey, R. B. (paper): Hardening Process 

 in Plants and Developments from Frost 

 Injury 83-iit 



Hawaii, fruit-fly parasites in 419-466 



Hawkins, Lon A., et al. (paper): Physiologi- 

 cal Studies of Normal and Blighted Spin- 

 ach 369-408 



Hay, alfalfa — 



digestibility 271, 283 



net energy value 269-286 



Hayes, H. K., and Army, A. C. (paper): 



Experiments in Field Technic in Plot 

 Tests 351-262 



