PREFACE vii 



in the description of varieties. Acknowledgments are due to 

 F. Z. Hartzell for reading the chapter on Grape Pests and 

 their Control and for furnishing most of the photographs used 

 in making illustrations of insects and fungi; to F. E. Gladwin 

 for similar help in preparing the two chapters on pruning 

 and training the grape in eastern America; to Frederic T. 

 Bioletti for permission to republish from a bulletin written by 

 him from the Agricultural Experiment Station of California 

 almost the whole chapter on Grape Pruning on the Pacific 

 Slope ; and to O. M. Taylor and to R. D. Anthony for very 

 material assistance in reading the manuscript and proofs. 



U. P. HEDRICK. 



GENEVA, N. Y., 



Jan. 1, 1919. 



