Believing that the study of Agricultural Engineering should fill an important place in the training of the young man who would make farming the object of his life's work, the author has attempted to furnish in this volume an aid in supplying this part of his training. The application of agricultural engineering methods to agriculture should not only raise the efficiency of the farm worker but should also provide for him a more comfortable and healthful home.
This volume has been written primarily as a text for secondary schools of agriculture, and for colleges where only a general course can be offered. Claim is not made for much new material concerning the subjects discussed; but rather an attempt has been made to place under one cover a general discussion of agricultural engineering subjects which hitherto could not be secured except in several volumes and hence impractical for text-book purposes.
No attempt has been made to outline the exact method for the teaching of the subjects, as this must vary with conditions. It is desirable that classwork upon the text should be supplemented by laboratory work. The nature of the laboratory work will depend upon the equipment available. It is suggested that the equipments on the nearby farms may be used to good advantage. Sample machines to be used for study may be secured by co-operation with dealers in farm machinery.
The author will be very glad to receive criticisms and suggestions from those using this text, in regard to how it may be improved and made more useful. The correction of any errors will likewise be appreciated.