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In accepting their assignments in the co-operative effort to prepare this review, the collaborating authors and the editor have recognized the difficulties involved in the translation of scientific findings into terms of practical application. They have recognized also that the readers of this book will vary widely in scientific training and in practical hatchery experience. Special effort has accordingly been made to explain in the text and to define in the ...
This book is prepared as a practical guide for both large and small poultry keepers and those interested in starting a poultry enterprise. The practices and methods are those most commonly used by successful poultry keepers and are based on scientific principles.
Although there is more information about poultry than ever before, it has not made the management of a flock any easier. If anything, it has added to the many conflicting ideas with regard to the best ...
This book is the outgrowth of a lithoprinted manual published originally by the author in 1939 for use in a course in vegetable diseases offered to graduate students. The number of research contributions in this field since that date is large, which alone necessitated revision. Moreover, the extension and specialization of vegetable culture in the United States has increased the pathological problems on the one had, while the number of technical specialists, ...
This text has enjoyed a wide acceptance since its introduction in 1924. This fourth edition has been prepared to include some of the many worth-while additions to our agronomic knowledge and, therefore, to make it still more useful to teachers and students. The many suggestions made by various users of this textbook have been followed closely in making the current revision. The initial chapters, history of American agriculture, replaces beginnings of plant ...
