622 
Journal of Agricultural Research 
Vol. XXVI 
Page 
Some Morphological Responses of the Host 
Tissue to the Crowngall Organism: A. J. 
Riker.425-436 
Some Observations on the Temperature of 
the Leaves of Crop Plants: E. C. Miller and 
A. R. Saunders. 15-43 
Some Physiological Variations in Strains of 
Rhizopus nigricans: L. L. Harter and J. L- 
Weimer. 363-371 
Sorghum— 
blight, description and comparisons. 157-158 
tannin determinations. 258 
South Dakota, false wireworms in. 550 
Spectrophotometer, description and use in 
carotin determination.384-387,393-394 
Spectrophotometric observations of solutions 
of oleic acid products...352-355 
Spinal cord, changes in dourine. 504-504 
fluid, tests in dourine.499-502 
Spleen, horse, iron content of in infectious 
anemia, of. 239-242 
Sporotrichum globuliferutn, attacking false 
wireworms. 561 
Spraying, grape leafhopper.. 424 
Spurge nettle seed, description, chemical 
analysis...... 259-260 
Staining molds, in studying penetration.... 221-223 
Staphylococcus pyogenes aureus, destruction 
by chlorin tests. 379 
Starch content of chufa tubers. 72-73 
Starch-iodid, test for free chlorin. 377 
Stem and Rootrot of Peas in the United 
States Caused by Species of Fusarium: 
Fred Reuel Jones. 1 . 459-476 
Stemrust of wheat, cytology of. 571-604 
Storage apples, experiments with oil wrappers 
to control scald. 513-536 
Stripe, bacterial, disease of proso millet.... 151-160 
Study of the Serology, Cerebrospinal Fluid, 
and Pathological Changes in the Spinal 
Cord in Dourine: Harry W. Schoening and 
Robert J. Formad. 497“505 
Substance K, isolation in rancidity studies, 
notes.338,342-346,348, 355 - 357 ,360 
Substance R, isolation m rancidity studies, 
and formation mechanism... 349-352,356-358,360 
Sugar, loss from beets during storage.126-149 
Swanson, C. O.: Soil Reaction in Relation to 
Calcium Adsorption. 83-123 
Sweet potato— 
destruction by termites..-. 290 
inoculation with Rhizopus nigricans 
strains.364-365 
Tannin in plant tissue, quantitative estima¬ 
tion of. 257-258 
Temperature— 
charts, indoor refrigeration plant. 186-187 
in leaves of crop plants. 15-43 
relation to germination of Rhizopus nigri¬ 
cans strains. 365-369 
soil, relation to wheat infection by Helmin¬ 
thosporium sativum . 195-218 
Termites— 
classification, description, and habits. 281,285-300 
nests, descriptions. 284,289,292,294-5,296,298 
nonsubterranean, control. 301 
of the Canal Zone and Panama, biological 
notes on. 279-302 
subterranean, control.300-301 
swarming habits. 287,289,290,291 
winged, pest in Canal Zone.. 288,290,300 
Testing beets for sugar content. 125-126 
Texas, false wireworms. 550 
Thermostat for control of low temperatures.. 183 
The Three-Banded Grape Leafhopper and 
Other Leafhoppers Injuring Grapes: G. A. 
Runner and C. I. Bliss. 419-424 
Tiles, crushing by swelling soils. 13 
Time for Testing Mother Beets: Dean A. 
Pack. 125-150 
Tip bum, potato, relation to osmotic pressure 
of juices. 250,251,253,255 
Tobacco worm, septicemia in. ; . 477-486 
Tobacco splitworm, importance, and simi¬ 
larity to eggplant leaf minor. 567,568,569 
Tomato, crowngall, histological studies.... 425-430 
Tomato worm, septicemia in... 477-486 
Toxicity of cottonseed meal— 
autoclaving for.. 9-10 
due to gossypol. 233-237 
Page 
Trapping false wireworms. 564 
Trees, mold penetration in. 219,223-227 
Trombicula cinnabaris, adult form of common 
chigger. 402 
Trombicula tlalzahuatl, common North 
American chigger. 401-402 
Trypanosoma equiperdum, cause of dourine, 
use in tests. 498 
Tumor, apricot. 45-60 
Turner, C. W., and Ragsdale, A. C.: The 
MinimumMilkRequireinentforCalfRaising 437-446 
Turpentine, oil solutions, spectra. 337 
Two Diseases of Udo (Aralia cor data Thunb.) 
J. L. Weimer. 271-278 
Udo, two diseases of.. 271-278 
Varietal Resistance in Winter Wheat to the 
Rosette Disease: R. W. Webb, C. E. 
Leighty, G. H. Dungan, and J. B. Ken¬ 
drick. 261-270 
Vegetables wilted by Verticillium alboatrum 277 
Vinson, A. E., and Catlin, C. N.: The Auxo- 
taxic Curve as a Means of Classifying Soils 
and Studying Their Colloidal Properties... 11-13 
Wade. J. S., and St. George, R. A.:Biology of 
the False Wireworm Eleodes suturalis Say. 547-566 
Waxes, use on apples to control scald... 529-531,532 
Weather conditions, effect on rootrot of 
cotton and alfalfa..411-412 
Weathering, cause of acid condition of soils 114-116 
Webb, Robert W.— 
Leighty, C. E., Dungan, G. H., and Ken¬ 
drick, J. B.: Varietal Resistance in 
Winter Wheat to the Rosette Disease.. 261-270 
McKinney, H. H., and Eckerson, Sophia 
H.: The Intracellular Bodies Associated 
with Rosette Disease and a Mosaiclike 
Leaf Mottling of Wheat.605-608 
Weevil, bean, four-spotted, life history and 
habits.... 609-616 
Weimer, J. L.— 
Two Diseases of Udo (A ralia cor data 
Thunb. 271-278 
and Harter, L. L.: Some Physiological 
Variations in Strains of Rhizopus nigri¬ 
cans . 363-37* 
West Virginia forest trees, injury by oak sap¬ 
ling borer. 3*3.3*6 
Wheat— 
Baart, Kanred, and Mindum, stemrust in¬ 
fection, cytological studies... 571-604 
injury by false wireworms. 55*“553 
intracellular bodies associated with rosette 
and mottling. 605-608 
leaf mottling, mosaiclike, intracellular 
bodies associated with.605-608 
rosette disease, intracellular bodies asso¬ 
ciated with. 605-608 
seed, treatment for control of false wire- 
worm. 564 
seeding date, relation to Helminthosporium 
disease. 212-214,215 
seedlings— 
growing in nutrient solutions, results.. 303-3*0 
infection by Helminthosporium sativum. 195-218 
stemrust, cytology. 571-604 
varieties resistant to rosette disease, list.. 265-269 
White, G. F.— 
Cutworm Septicemia.487-496 
Homworm Septicemia. 477-486 
Wilt, udo, cause, description, control. 276-277 
Wireworm, false— 
biology, distribution. 547“566 
control measures. 563-565 
natural enemies of. 561-563 
Wood— 
boxelder, red stain. 449-458 
coniferous, discolorations caused by fungi, 
notes. 447,448 
mold penetration, studies. 219-230 
Woodwork, injury by termites. 283, 289, 290 
Woodpeckers, enemies of oak-sapling borer... 3*7 
Wounds, tree, susceptibility to red stain 
fungus infection. 455 
Wrappers, oiled, use in control of apple 
scald..... 5*3-529 
Wright, Lewis H.: Iron Content of the Blood 
and Spleen in Infectious Equine Anemia. 239-342 
Wright, Sewall, and Eaton, O. N.: Factors 
Which Determine Otocephaly in Guinea 
Pigs. 161-182 
WASHINGTON I GOVERNMENT PRINTING OFFICE l 1928 
