LABORATORY MANUAL OF HORTICULTURE 



last; he will probably find it desirable to make the order in 

 which the exercises are used conform to the work in hand. For 

 instance, if the discussion is on buds and pruning, it will be 

 advisable to turn to that section and work out those exercises. 

 If the discussion is on seeds, then the laboratory exercises deal- 

 ing with germination of seeds should be assigned, and so on 

 through the book. Care should be taken, however, not to assign 

 tasks based on preceding exercises that have not been already 

 worked out or discussed. 



The author wishes to express his appreciation to Professor 

 Wendell Paddock of the Ohio State University, Professors 

 R. A. Emerson and J. R. Cooper of the University of Nebraska, 

 and others for valuable suggestions offered in connection with 

 this work. 



GEORGE W. HOOD 



[iv] 



