Page 
CONTENTS 
Observations on the Body Temperature of Dry Cows. Max 
Kriss (46 text figures). 
Effect of Time of Irrigation on Kernel Development of Barley. 
Harry V. Harlan and Stephen Anthony (20 text figures)... 29 
Leafroll, Net-Necrosis, and Spindling-Sprout of the Irish Potato. 
E. S. Schultz and Donald Folsom (12 plates). 47 
Growth and Sap Concentration. Howard S. Reed (7 text 
figures). 
Seed-Coat Injury and Viability of Seeds of Wheat and Barley as 
Factors in Susceptibility to Molds and Fungicides. Annie 
May Hurd (ii plates). 99 
Bacterial Spot of Tomato. Max W. Gardner and James B. 
Kendrick (5 plates). I2 3 
Carbon Tetrachlorid for the Removal of Parasitic Worms, Espec¬ 
ially Hookworms. Maurice C. Hall . 1 5 7 
Cotton Rootrot in the San Antonio Rotations. C. S. Scofield .... 11 7 
Life History of Recurvaria milleri, the Lodgepole Pine Needle- 
Miner in the Yosemite National Park, California. J. E. Pat¬ 
terson (4 text figures; 2 plates). I2 7 
A Bacterial Budrot of Cannas. Mary K. Bryan (8 plates). 143 
A Chlorosis of Conifers Corrected by Spraying with Ferrous Sul¬ 
phate. Clarence F. Korstian, Carl Hartley, Lyle F. 
Watts, and Glenn G. Hahn (4 text figures). 153 
Rooting Stems in Timothy. R. A. OaklEy and Morgan W. 
Evans (2 plates). *73 
Collar-Rot of Tomato. F. J. Pritchard and W. S. Porte (5 
plates)..... x 79 
Bacterial Leafspot Disease of Celery. IvanC. JaggER . 185 
Glucose as a Source of Carbon for Certain Sweet Potato Storage- 
Rot Fungi. J. L. Weimer and L. L. Harter. 189 
Respiration of Sweet Potato Storage-Rot Fungi When Grown on 
a Nutrient Solution. L. L. Harter and J. L. Weimer (i text 
figure). 
Heritable Variations in an Apparently Uniform Variety of Cotton. 
Thomas H. Kearney (i text figure; 7 plates). 227 
Some Relations of Temperature to Growth and Infection in the 
Citrus Scab Fungus Cladosporium citri. H.S. Fawcett. 243 
Bacterial Wilt of Castor Bean (Ricinus communis L.). Erwin 
F. Smith and G. H. Godfrey (i text figure; 13 plates) . 255 
(m) 
