iv PREFACE 



through him many photographs have been supplied by the 

 Department of Agriculture. Cuts made from those photo- 

 graphs are marked "A. E." of agricultural education. 



In like manner, Frederick C. Minkler, Professor of Ani- 

 mal Husbandry of the New Jersey College of Agriculture, 

 has read the manuscript and proofs of several chapters 

 on Animal Production, Animal Breeding, Horses, Cattle, 

 Sheep, and Swine. Other Professors of the same institution 

 have read the manuscript and proofs of a number of other 

 chapters: Dr. Jacob G. Lipman, Director of the Agricul- 

 tural Experiment Station, the five chapters on Soils and 

 their Improvement; Professor Harry R. Lewis, Head of the 

 Poultry and Dairy Departments, the chapters on Poultry 

 Management and Cattle Products; Dr. John B. Smith, 

 State Entomologist, the chapters on Insects and Bee-keeping; 

 Professor Maurice A. Blake, Head of the Horticulture 

 Department, the chapter on Fruit Production; Dr. Byron 

 D. Halsted, Botanist and Plant Pathologist, the first chapter 

 and the chapter on Plant Diseases and Spraying; Walter 

 W. Shute, Instructor in Forage Crops, the chapters on Field 

 Crops and on Alfalfa; Arthur J. Farley, of the Horticulture 

 Department, the Sections on Spraying and the Tables of 

 Insecticides and Fungicides; Dr. Myron T. Scudder, Head- 

 master of the Rutgers Preparatory School and Professor 

 of the Science of Teaching in Rutgers College, has read 

 manuscripts and proofs of the Introduction and the chapter 

 on The Business of Farming. Mrs. Kary C. Davis has read 

 and criticized the whole manuscript and corrected the proofs. 

 She has made nearly all of the pen-and-ink drawings in the 

 book. To all of these and others, including many farmers 

 and teachers whose names do not appear, the author is 

 greatly indebted for material aid and encouragement. 



Photographs besides those already mentioned have been 

 kindly furnished by the Agronomist and the Dairy Division 

 of the United States Department of Agriculture. These 



