XII EXPERIMENT STATION RECORD, [Vol. 30 



Page. 

 Bulletin 420, Cooling Hot-bottled Pasteiirized Milk by Forced Air, S. H. 



Ayers, J. T. Bowen, and W. T. Johnson, jr 174 



Bulletin 421, The Sugar-beet Thrips, W. H. White 153 



Bulletin 422, The Eggplant Tortoise Beetle, T. H. Jones 57 



Bulletin 423, Labor Requirements of Dairy Farms as Influenced by Milking 



Machines, H. N. Humphrey 272 



Bulletin 424, The Cottonwood Borer, F. B. Milliken 157 



Bulletin 425, Farming on the Cut-over Lands of Michigan, Wisconsin, and 



Minnesota, J. C. McDowell and W. B. Walker 190 



Bulletin 426, Sugar Pine, L. T. Larsen and T. D. Woodbiu-y 447 



Bulletin 427, The Potato Tuber Moth, J. E. Graf 655 



Bulletin 428, Medicago falcata, a Yellow-flowered Alfalfa, R. A. Oakley and 



S . Garver 334 



Bulletin 429, Life History of the Codling Moth in the Pecos Valley, New 



Mexico, A. L. Quaintance and E. W. Geyer 756 



Bulletin 430, Cereal Experiments on the Cheyenne Experiment Farm, Ai'cher, 



Wyo. , J. W. Jones 133 



Bulletin 431, Sacbrood, G. F. White 659 



Bulletin 432, The Spike-horned Leaf-miner, an Enemy of Grains and Grasses, 



P. Luginbill and T. D. Urbahns 256 



Bulletin 433, Changes in Fresh Beef during Cold Storage above Freezing, 



R. Iloagland, C. N. McBr\'de, and W. C. Powick 759 



Bulletin 434, Judging the Dairy Cow as a Subject of Instniction in Secondary 



Schools, H. P. Barrows and H. P. Davis 194 



Bulletin 435, The Apple Leaf-sewer, B. R. Leach 254 



Bulletin 436, The Desert Com Fleabeetle, V. L. Wildermuth 658 



Bulletin 437, Flat-headed Borers Affecting Forest Trees in the United States, 



H. E. Burke 554 



Bulletin 438, The Pear Leaf-worm, R. L. Nougaret, W.M. Davidson, and E. J. 



Newcomer 260 



Bulletin 439, The Soy Bean, with Special Reference to Its Utilizat ion for Oil, 



Cake, and Other Products, C. V. Piper and W. J. Morse 336 



Bulletin 440, Lumbering in the Sugar and Yellow Pine Region of California, 



S. Berry 745 



Bulletin 441, The Action of Manganese under Acid and Neutral Soil Condi- 

 tions, J. J. Skinner and F. R. Reid 124 



Bulletin 442, Possibility of the Cormnercial Production of Lemon Grass Oil in 



the United States, S. C. Hood 538 



Bulletin 443, The New Mexico Range Caterpillar and Its Control, V. L. Wilder- 

 muth and D. J. Caffrey 55 



Bulletin 444, False Blossom of the Cultivated Cranberry, C. L. Shear 240 



Bulletin 445, The Navel Orange of Bahia; with Notes on Some Little-known 



Brazilian Fruits, P. H. Dorsett, A. D. Shamel, and W. Popenoe 743 



Bulletin 446, The Cost of Producing Apples in Wenatchee Valley, Washington, 



G. U. Miller and S. M. Thomson 443 



Bulletin 447, Water Penetration in the Gimibo Soils of the Belle Fourche Recla- 

 mation Project, O. R. Mathews 210 



Bulletin 448, Separation and Identification of Food-coloring Substances, 



W. E. Mathewson 714 



Bulletin 449, A Study of the Electrolytic Method of Silver Cleaning, H. L. 



Lang and C. F. Walton, jr 266 



Bulletin 450, Improvenemt of Ghirka Spring Wheat in Yield and Quality, 



J. A. Clark 337 



