Preface vii 



Co., American Yorkshire Club, The Country Gentleman, 

 American Jersey Cattle Club, American Guernsey Cattle Club, 

 American Aberdeen- Angus Breeders' Association. Aid from 

 these sources has done much toward making the book more 

 accurate, and more worth while to both pupil and teacher. 



I desire, also, to express my appreciation of help rendered 

 by several friends who have read proof sheets of certain of the 

 chapters. Professor W. H. Stevenson, of the Iowa State 

 College, the chapters dealing with soils ; Dr. C. W. Larson, of 

 the Federal Dairy Division, the chapters on dairy cattle and 

 dairying; Professor R. S. Curtis, of the North Carolina 

 Agricultural Experiment Station, the chapters dealing with 

 live-stock; Alice V. Wilson, of the East Carolina Teachers' 

 Training School, and Mary Stuart MacDougall, of the Winthrop 

 Normal and Industrial College of South Carolina, the chapter' 

 on plant study; and my assistant, Professor Thomas B. 

 Meadows, all of the chapters. 



H. 0. SAMPSON. 



