TABLE OP CONTENTS 



CHAPTER I 



PAGES 



Introductory View 1-13 



Classification of plants, 2 — Variety, 3 — Genus, 4 — 

 Naming of plants, 5 — The family, 5 — Order, class, and 

 division, 6 — Length of life, 7 — Cultivated plants, 8^ 

 Field crops, 8 — Classification of field crops, 9 — Defi- 

 nition of terms, 12. 



CHAPTER II 



Crop Rotations ......... 14-28 



Rotation experiments at Rothamsted, 15 — Rotation 

 experiments in Iowa and Illinois, 17 — Rotation experi- 

 ments in Ohio, 18 — Why rotations give better yields, 

 20 — Planning a rotation, 23 — Rotation does not main- 

 tain fertility, 25 — Suggested rotations, 27. 



CHAPTER III 

 Corn or Maize ......... 29-58 



Historical, 29 — Botanical characteristics, 30 — Root, 

 stem, and leaves, 30-33 — Flowers, ear, and kernel, 34- 

 37 — Ancestors of the corn plant, 38 — Types of com, 

 41-50 — Uses of corn plant, 50-53 — The world's pro- 

 duction, 54 — Adaptation, 57. 



CHAPTER IV 



Corn or Maize (Continued) 59-98 



Methods of culture, 59 — Plowing and preparing the 

 land, 61-67 — Testing the seed, 68 — Time, depth, and 

 ix 



