APPENDIX 319 



Arthur and MacDougal. Living Plants and Their Properties. 

 11.25. University Book Store, Minneapolis, Minn. 



MacDougal. Physiological Botany. 



4. See the books mentioned in the text. 



It is entirely wrong to begin the study of nature with books. 

 First observe the life about you, then you are ready for special and 

 for general reading. 



5. FARMERS' BULLETINS. 



These bulletins are sent free of charge to any address upon appli- 

 cation to the Secretary of Agriculture, Washington, D. C. 



[Only the bulletins named below are available for distribution.] 

 No. 



15. Some Destructive Potato Diseases : What They Are and How 



to Prevent Them. 



16. Leguminous Plants for Green Manuring and for Feeding. 



18. Forage Plants for the South. 



19. Important Insecticides: Directions for Their Preparation and 



Use. 



20. Washed Soils: How to Prevent and Reclaim Them. 



21. Barnyard Manure. 



22. Feeding Farm Animals. 



23. Foods : Nutritive Value and Cost. 



24. Hog Cholera and Swine Plague. 



25. Peanuts : Culture and Uses. 



26. Sweet Potatoes: Culture and Uses. 



27. Flax for Seed and Fibre. 



28. Weeds; and How to Kill Them. 



29. Souring of Milk, and Other Changes in Milk Products. 



30. Grape Diseases on the Pacific Coast. 



31. Alfalfa, or Lucern. 



32. Silos and Silage. 



33. Peach Growing for Market. 



34. Meats : Composition and Cooking. 



35. Potato Culture. 



36. Cotton Seed and Its Products. 



37. Kafir Corn: Characteristics, Culture, and Uses. 



