PREFACE. 



The development of the teaching of Agriculture has mad 

 necessary, and has been largely dependent on, the making of text- 

 books of various kinds adapted to the special technical work for 

 which our best agricultural schools stand. 



When these agricultural colleges started there were no text- 

 books adapted to their special lines of work, and the demand 

 necessitated the hasty preparation of text-books which are now 

 being replaced by those that are more complete and better adapt- 

 ed in every way for teaching purposes. 



This book is the result of the development of the teaching 

 of Fruit Growing in the University of Minnesota and is, in a way, 

 a compilation of lectures on Fruit Growing eiven to the students 

 which have been carefully revised and considerably extended. 

 At the end of each chapter are suggestive questions on the mat- 

 ter presented. 



An appendix is added which contains formulas for fungi- 

 cides, Insecticides and grafting wax^s, etc.; lists of fruits recom- 

 mended for special typical states and rules for naming fruits. 

 The fruit lists are from the professors of Horticulture of the 

 various Agricultural Colleges ana irom secretaries of the va- 

 rious Horticultural Societies. 



In the preparation of this work I have had the earnest and 

 Intelligent assistance of Miss Jeannette Foster. I am also under 

 obligations to my assistant in Horticulture, Mr. A. R. Kohler, 

 who prepared the pages on Spraying and Spraying machinery; 

 to Mr. Elvin Peterson, student of the College of Agriculture, 

 who has made many of the drawings; to Prof. Frederick Wash- 

 burn for cuts which he has loaned; to Prof. E. M. Freeman for 

 many suggestions embodied in the chapter on Plant Diseases and 

 to Mr. A. G. Ruggles for suggestions in regard to the chapter on 

 Insects Injurious to Fruits. I am also under obligations to those 

 who have assisted by furnishing data for the fruft list and in 

 other ways aided in its preparation. 



SAMUEL B. GREEN, 

 St. Anthony Park. Minn. 



