It is for the purpose of making as practical as possible some of the principles of scientific agriculture for the boys and girls of the public schools, and of giving direct vocational value to such work that this little book, the third of a series, is submitted. The plan outlines one project in each booklet, supplying the project directions, practical exercises for laboratory work, subject-matter for study and recitation, and notebook forms for accounts and records. The school work in elementary agriculture for one year may be based upon one or two projects, giving opportunity to supply new subject-matter by rotation each year; or the project method may be used to supplement the text-book method as used either in the elementary or high-school grades. In either case, the boys and girls doing the project work should be organized into a club and affiliated with the State Boys and Girls Club movement through the state leader, usually located at the State College of Agriculture. —THE AUTHORS. CONTENTS PART ONE. PIG RAISING CALENDAR 9 PART TWO. PRACTICAL EXERCISES 21 1. Wild Relatives of Swine 2. Swine on the Home Farm 3. Market Prices 4. Inspection Trips 5. Comparative Judging 6. Exercises in Judging 7. Reports on Home Feeding 8. Hog Houses 9. Breed Directory 10. Concrete Hog Wallow 11. Wooden Troughs 12. Hurdles 13. Making a Collection of Feeds 14. Weighing Pigs with Steelyards PART THREE. SWINE 29 1. Origin 2. Bacon-Type 3. Lard-Type 4. Breeds 5. Bacon Breeds 6. Lard Breeds 7. Selecting the Pigs 8. Getting Started 9. Care and Management 10. Houses 11. Sanitation 12. Wallows and Dips 13. Worms 14. Hog Cholera 15. Feeds and Feeding 16. Corn, Pasture and Other Supplements 17. Mineral Matter 18. Feeding and Care of the Sow 19. Feeding the Pigs 20. Markets 21. Market Classes and Grades 22. Notebook Questions APPENDIX 49 A Model Constitution for Boys and Girls Clubs 49 Parliamentary Practice, Hints and Suggestions, Duties of Officers 50 Suggestive Programs for Agricultural Clubs 53 References on Pigs 53 PART FOUR. THE HOME PROJECT NOTEBOOK 57 TO THE TEACHER