355 

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PREFACE. 



The development of the teaching of Agriculture has made 

 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 waxes, 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 and irom secretaries of the var 

 rlous 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 fruit list and in 

 other ways aided in its preparation. 



SAMUEL B. GREEN, 

 St. Anthony Part, Minn. 

 March 1, 1910. 



