IV PREFACE. 



many books — ancient and modern — and it should be of 

 great value. 



An index to the therapeutic action of Botanical Drugs 

 is added, one of Books bearing on the subject, and another 

 of standard compounds of a Herbal character. The 

 last is a compilation entirely, and we desire here to 

 thank the publishers of various books from which they 

 have been taken for their permission to reprint the 

 formulas given. 



The worth of a book of this kind depends very much 

 upon the comprehensiveness and general arrangement 

 of its index, and every endeavour has been made to put 

 this in up-to-date form. The mistake of placing it at 

 the end of the book has been avoided, and by means of 

 the employment of distinguishing types, the whole of 

 about 3,000 Common, Botanical, and Synonymous 

 names are given in one complete reference. 



R. C. W. 



