INTRODUCTORY. 



portion of the subject entrusted to him. These articles having duly 

 appeared in the pages of the Brewing Trade Review, it was suggested 

 that it would be an advantage to many who are directly or indirectly 

 interested in the hop plant if a more permanent and more easily 

 accessible form were given to them. This little monograph the 

 outcome of the above suggestion is therefore primarily intended to 

 indicate to those who may be interested in the subject the present 

 state of our knowledge in regard to the more important constituents 

 of hops ; the articles coming, with one or two exceptions, from the 

 pens of the investigators themselves. Whilst, therefore, it does not 

 aspire to be regarded as a text-book it is hoped that this little work 

 may have a sphere of usefulness as an appendix or supplement to 

 more systematic treatises. 



ALFRED C. CHAPMAN. 



LONDON, October, 1905. 



