II 
Journal of Agricultural Research 
Vol. XXIII 
A Bacterial Leafspot of Tobacco. James Johnson (4 plates). 
Parasitic Fungi Internal of Seed Corn. Thomas F. Manns and J. F. Adams 
(13 plates)... 
Cotton Rootrot in Arizona. C. J. King. 
Correlations between Various Characters of Wheat and Flour as Determined from 
Published Data from Chemical, Milling, and Baking Tests of a Number 
of American Wheats. Jacob Zinn.... 
Aplastomorpha vandinei Tucker, an important Parasite of Sitophilus oriza L. 
Richard T. Cotton (i plate). 
Inheritance in Swine. Edward N. Wentworth and Jay L. Lush (i text 
figure; 2 plates)... 
Early Vigor of Maize Plants and Yield of Grain as Influenced by the Com Root, 
Stalk, and Ear Rot Diseases. James R. Hoebert, W. L. Bureison, H. 
Howard Biggar, Benjamin KoeheEr, George H. Dung an, and MereE T. 
Jenkins (20 text figures; 7 plates). 
Effect of Burning on Vegetation in Kansas Pastures. R. L. HensEE (4 text 
figures; 2 plates). 
Control of Lettuce Drop by the Use of Formaldehyde. Webster S. Krout (3 
text figures; 1 plate). 
Distribution of Pentosans in the Com Plant at Various Stages of Growth. John 
H. Ver Huest, W. H. Peterson and E. B. Fred. 
Stimulating the Growth of Azobacter by Aeration. O. W. Hunter (4 text 
figures). 
Gray Mold of Castor Bean. G. H. GofdrEy (5 text figures; 13 plates). 
Influence of the Specific Gravity of Hens* Eggs on Fertility, Hatching Power, 
and Growth of Chicks. F. E. Mussehe and D. L. Haeberseeben. 
Time Required for Food to Pass Through the Intestinal Tract of Fowls. B. F. 
Kaupp and J. E. Ivey. 
Effectiveness of Mulches in Preserving Soil Moisture. F. S. Harris and H. H. 
Yao (6 text figures)... 
Origin of the Central and Ostiolar Cavities in Pycnidia of Certain Fungous 
Parasites of Fruits. B. O. Dodge (i text figure; 6 plates). 
Further Studies on the Pathogenicity of Corticium vagum on the Potato as 
Affected by Soil Temperature. B. L. Richards (i text figure; 1 plate). 
Investigations of the Rosette Disease of Wheat and Its Control. Haroed H. 
McKinney (2 text figures; 8 plates). 
Accumulation of Aluminum and Iron Compounds in Com Plants and Its Prob¬ 
able Relation to Rootrots. G. N. Hoffer and R. H. Carr (21 plates). 
Production of a Growth-Promoting Substance by Azobacter. O. W. Hunter 
(2 text figures).. 
Sclerotinia carunculoides, the Cause of a Serious Disease of the Mulberry (Mortis 
alba). Eugene A. SiEGEER and Anna E. Jenkins (i text figure; 2 plates).. 
Influence of Soil Temperature and Moisture on the Development of the Seedling- 
Blight of Wheat and Com Caused by Gibberella saubinetii. J AMES G. Dickson 
(15 text figures; 6 plates). 
Further Studies in Photoperiodism, the Response of the Plant to Relative 
Length of Day and Night. W. W. Garner and H. A- Aeeard (19 plates)_ 
Agameris decaudata Cobb, Steiner, and Christie; a Nema Parasite of Grass¬ 
hoppers and Other Insects. N. A. Cobb, G. Steiner and J. R. Christie. 
Summer Irrigation of Pima Cotton. R. D. Martin and H. F. Loomis (4 text 
figures). 
Permanence of Variety in the Potato. Fred A. Krantz (i plate). 
Anatomical Studies on Potato Wart. Ernst F. Artschwager (5 plates). 
Influence of Temperature and Evaporation upon the Development of Aphis 
pomi DeGeer (8 text figures)... 
Downy Mildew on Lettuce in California. D. G. MiebraTh (3 plates). 
Determination of Starch Content in the Presence of Interfering Polysaccharids. 
George P. Waeton and Mayne R. Coe. 
Biological Notes on the Hen Flea, Echidnophaga gallinacea. D. C. Parman. .., 
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