yi THE HOP. 



of their various hop plantations. New York: James 

 F. Clark, the largest hop grower in the state; W. A. 

 Lawrence, Editor W. S. Hawkins of the Waterville 

 Times, Secretary Fox of the New York city hop trade. 



In England, the London hop dealers extended 

 every assistance, also numerous growers. All the 

 results of the scientific experiments conducted at the 

 Southeastern agricultural college at Wye, in Kent, 

 were generously made available for this work by Presi- 

 dent Hall. Editor E. H. Elvy of the Kentish Observer 

 aided with valuable data and pictures. Editor Iron- 

 monger's work in the English Hop Grozver (a useful 

 journal, now defunct), has also been an important aid, 

 and he has contributed otherwise to this book. As 

 secretary of the National Association of English Hop 

 Growers, Mr. Thomas Ironmonger has also rendered 

 much valuable assistance. Special credit should be 

 given to Charles Whitehead's works. 



In Europe, we are under special obligations to 

 C. Beckenhaupt of Alsace, Von Barth & Co., the 

 Nuremberg merchants, Editor Fairt of the Deutschen 

 Hopfenbau Vcrein, and many others. 



Dr. L. O. Howard, chief of the division of ento- 

 mology of the United States department of agriculture, 

 prepared the most of the admirable chapter on hop 

 insects. Dr. H. W. Wiley, chief of the division of 

 chemistry, aided in preparing the chemistry of the hop 

 plant, as presented by E. E. Ewell, assistant in that 

 division. N. F. Walter's glossary of hop terms is a 

 distinct contribution to technical literature. C. F. 

 Dalton deserves much credit for assistance in putting 

 the book to press. 



In all modesty, therefore, this book may be accept- 

 ed as a comprehensive treatise on its special topic. 

 Particular pains have been taken to make it strictly 

 accurate, so that it may be the authority upon all points 

 pertaining to hops of which it treats. 



