CONTEXTS. 



Department Bulletin No. 103] . — Range and Cattle Management During 



Drought — Continued. Page. 



Improvements necessary to meet increase in cost of cattle production 53 



Improvement in grade of stock 54 



Increasing calf crop 58 



Decreasing losses of cattle 65 



Increasing growth of young stock 77 



Summary 79 



List of publications relating to this subject 82 



Department Bulletin No. 1032. — The Blackhead Fireworm of Cran- 

 berry, ON the Pacific Coast: 



Introduction 1 



Importance of the blackhead fireworm 2 



The cranberry industry on the Pacific coast 2 



Features of bog management 3 



Phenology of the cranberry on the Pacific coast 3 



Introduction of the blackhead fireworm into the Northwest 4 



Distribution 5 



Food plants 5 



Destructiveness 5 



Number of generations 6 



Description of stages and habits 7 



Seasonal history 19 



Natural enemies 20 



Control experiments 22 



Recommendations for control 34 



Summary and conclusions ,37 



Systematic description of Rhopobota naevana Hubner 42 



Explanation of plates 45 



Department Bulletin No. 1033. — Digestibility of Cod-liver, Java-almond, 

 Tea-seed, and Watermelon-seed Oils, Deer Fat, and Some Blended 

 Hydrogenated Fats: 



Purpose of investigations 1 



Experimental method 2 



Experiments 3 



Cod-liver oil 3 



Java-almond oil 5 



Tea-seed oil : 6 



Watermelon-seed oil 7 



Deer fat 8 



Blended hydrogenated fats 9 



Summary of results 15 



Department Bulletin No. 1034. — Farm Management and Farm Organi- 

 zation IN Sumter County, Ga.: 



Introduction 1 



Summary of results 3 



Area studied 5 



Utilization of the land 7 



Farm organization and business analysis of farms 8 



Size of farms 10 



Crops grown and yields 11 



Distribution of farm receipts 21 



Distribution of expenses 25 



Capital 28 



Farm earnings • 31 



Family farms 38 



Choice of enterprises 43 



Diversity 46 



Factors affecting the successful operation of these farms 50 



Bearing of farm organization on cost of producing cotton 58 



Appendix 72 



