VI DEPARTMENT OF AGRICULTURE BULS. 276-300. 



Department Bulletin No. 291— Continued. 



Comparative yields of sorgo, millet, and other annual forage crops in the Page- 

 central and northern Great Plains 12 



Water requirements of millet and sorgo 15 



Conclusions 18 



Department Bulletin No. 292. — Distribution and Migration of North 

 American Gulls and Their Allies: 



Introduction 1 



Economic importance of gulls 1 



Bird refuges 2 



Protection by private associations 3 



Legal protection 3 



Distribution 4 



Migration 5 



Annotated list of species - . 5 



Department Bulletin No. 293. — The Grasshopper Outbreak in New 

 Mexico during the Summer op 1913: 



Introduction 1 



History in America 2 



Distribution 3 



Seasonal history 3 



A migratory or nonmigratory species 3 



Origin of outbreak 4 



Breeding grounds 4 



Methods of travel 5 



Weather conditions 5 



Feeding habits 6 



Food plants 6 



Predacious enemies 6 



Parasitic enemies 7 



Artificial remedies 11 



Department Bulletin No. 294. — Lessons on Cotton for the Rural Com- 

 mon Schools: 



Introduction 1 



Lesson 1 1 



Lesson II 4 



Lesson III 5 



Lesson IV 8 



Lesson V 10 



Lesson VI 10 



Lesson VII 11 



Lesson VIII 11 



Lesson IX 12 



Lesson X 12 



Lesson XI 13 



Lesson XII 13 



Lesson XIII 13 



Lesson XIV 14 



Exhibits, rewards, and organization for clubs 14 



Suggestive correlations 15 



Department Bulletin No. 295. — The Zimmerman Pine Moth: 



Introd uction 1 



Description of the insect 2 



Seasonal history and habits 3 



Relation to other insects 5 



Relation to natural enemies 6 



Habitat and host trees 7 



Character of injury and work of larvae 8 



Effect of infestation on tree growth and forest 



Remedy 10 



Conclusion 11 



Department Bulletin No. 296. — Our Foreign Trade in Farm and Forest 

 Products: 



Summary 



Live animals 5 



Dairy products 7 



