CONTENTS 



CHAPTER 



Preface . . 



I The Soil ....... 



II The Physical Character of Soils . 



III The Relation of Soils to Moisture and Air 



IV The Anatomy and Physiology of Plants 

 V Plant Food in the Soil .... 



VI Manures and Commercial Fertilizers 



VII Life in the Soil ..... 



VIII Tillage and its Purposes 



IX The Washing of Soils and Methods of Prevent 



ING This Loss ..... 



X Crop Rotation — its Purpose and Practice 



XI Crops and Cropping 



XII The Indian Corn Crop 



XIII The Wheat Crop 



XIV The Oats Crop 

 XV The Cotton Crop 



XVI The Tobacco Crop . 



XVII The Irish Potato Crop 



XVIII The Hay Crop 



XIX How THE Legumes Aid Us . . . 



XX The Grasses ...... 



XXI Commercial Fertilizers for Various Crops 



XX 11 Useful Tables for Constant Reference 



PAGE 



V 



I 



22 

 41 



59 



79 



97 



119 



134 



143 

 148 

 167 

 172 

 186 

 198 

 202 

 217 

 235 

 247 

 268 



274 

 295 

 304 



