PREFACE 



THE object of this volume is to discuss the 

 fundamental principles underlying the practice 

 of agriculture. It is, in the main, an intro- 

 duction to crops and cropping, and contains 

 the sort of information that a farmer may be 

 expected to possess who aims at cultivating 

 his fields and manuring his crops intelligently. 

 The special requirements of the readers for 

 whom the series is intended have constantly 

 been borne in mind ; and it is hoped that, 

 supplemented by the selection of the works 

 mentioned at the end, the little volume may 

 be useful for those who have to gather their 

 knowledge without much aid from laboratories 

 and lecture rooms. W. S. 



