ACKNOWLEDGMENTS 



Credit should be given here to many who have aided the 

 author in preparing this text book. Particular thanks are due to 

 Mr. C. H. Lane, Chief Specialist in Agricultural Education, United 

 States Department of Agriculture, whose suggestions regarding 

 arrangement and content of subject matter have largely been 

 followed. Mrs. Kary C. Davis has read and criticised the manu- 

 script, made a number of the pen drawings, read the proofs and 

 aided in a number of ways. 



Thanks for the use of photographs or cuts are due John W. 

 Lloyd, author of Productive Vegetable Growing; E. G. Mont- 

 gomery, author of Productive Field Crops; A. D. Cromwell, 

 author of Agriculture and Life; Alva Snyder, author of Fights of 

 the Farmer; F. C. Pellett, author of Productive Bee-Keeping; 

 F. W. Woll, author of Productive Feeding of Farm Animals; 

 M. A. Blake, Horticulturist, New Jersey Station; Office of Illus- 

 trations, United States Department of Agriculture. 



Credit for the illustrations furnished by these, as well as by 

 others, is given under illustrations. 



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