IV Journal of Agricultural Research voi. xxi 
Stewart's Disease of Com. Frederick V. Rand and Lieuan C. 
Cash. 263 
Quality of Irrigation Water in Relation to Land Reclamation. 
Care S. Scofieed and Frank B. PIeadeEy. 265 
Effect of Ration on the Development of Pigs. C. O. Swanson 
(22 text figures). 279 
Some Fundamentals of Stable Ventilation. Henry Prentiss 
Armsby and Max Kriss. 343 
Treatment of Celery Seed for the Control of Septoria Blight. 
Webster S. Krout. 369 
Biology and Economic Importance of Anastatus seinifiavidus, a 
Recently Described Egg Parasite of Hetnileuca oliviae. D. J. 
CaffrEy (3 text figures; 1 plate). 373 
Varietal Susceptibility of Beans to Rust. F. D. FrommE and 
S. A. Wingard (5 plates). 385 
Life-History Studies of Three Jointworm Parasites. W. J. 
Phieeips and F. W. Poos (16 text figures; 6 plates). 405 
Study of the Relation of the Length of Kernel to the Yield of 
Corn (Zea mays indentata). C. C. Cunningham (i text 
figure; 8 plates). 427 
Distinguishing Characters of the Larval Stages of the Ox-Warbles 
Hypoderma bovis and Hypoderma lineatum, with Description 
of a New Larval Stage. E. W. Laake (24 text figures). 439 
Pathogenicity of Corticium vaguin on the Potato as Affected by 
Soil Temperature. B. L. Richards (5 text figures; 6 plates).. 459 
Further Experiments in Field Technic in Plot Tests. A. C. Arny 
(1 plate). 483 
Relation of Horse Nettle (Solanum carolinense) to Leafspot of 
Tomato (Septoria lycopersici). Fred J. Pritchard and W. S. 
Porte (5 plates).. 501 
Relation of Hardness and Other Factors to Protein Content of 
Wheat. Herbert F. Roberts (2 text figures; 1 plate). 507 
Effects of Some Cucurbita Seeds on Animal Metabolism. Ben¬ 
jamin Masurovsky.... 523 
A Constant-Temperature Bath for Heating Blood Serum. R. R. 
HeneEy (i text figure)... 34! 
Assimilation of Nitrogen, Phosphorus, and Potassium by Corn 
When Nutrient Salts Are Confined to Different Roots. P. L. 
GieE and J. O. Carrero (i text figure). 343 
Reduction in the Strength of the Mercuric-Chlorid Solution 
Used for Disinfecting Sweet Potatoes. J. L. WEiMER. 575 
Catalase, Hydrogen-Ion Concentration, and Growth in the Potato 
Wart Disease. Freeman Weiss and R. B. Harvey. 589 
Effect of Crowngall Inoculations on Bryophyllum. Erwin F. 
Smith (10 plates).-. 393 
