PH ARMACOGR APHIA. 495 



researches on the principal drugs derived from the vegetable 1874. 

 kingdom, together with such results of an important character H. B. Brady. 

 as have been obtained by the numerous workers on Materia 

 Medica in Europe and America." 



Eestricting the field of their inquiry by the exclusion of 

 pharmacy and therapeutics, " the authors have been enabled to 

 disciiss with fuller detail many points of interest which are 

 embraced in the special studies of the pharmacist." 



" The drugs included in the work are chiefly those which are 

 commonly kept in store by pharmacists, or are known in the 

 drug and spice market of London. The work likewise contains 

 a comparatively small number which belong to the Pharmaco- 

 poeia of India : the appearance of this volume seemed to present 

 a favourable opportunity for giving some more copious notice 

 of the latter than has hitherto been attempted." 



Now as to the manner of treatment. A uniform subdivision 

 into sections has been adopted throughout the work. In the 

 first place, " Each drug is headed by the Latin name, followed 

 by such few synonyms as may suffice for perfect identification, 

 together in most cases with the English, French, and German 

 designation. 



" In the next section, the botanical origin of the substance 

 is discussed, and the area of its growth or locality of its 

 production is stated." 



" Under the head of history, the authors have endeavoured to 

 trace the introduction of each substance into medicine, and to 

 bring forward other points in connection therewith, which have 

 not hitherto been much noticed in any previous work." 



" In some instances the formation, secretion, or method of 

 collection of a drug has been next detailed: in others, the 

 section history has been immediately followed by the descrip- 

 tion, succeeded by one in which the more salient features of 

 microscopic structure have been set forth." 



The next division includes the important subject of chemical 

 composition ; then follows a section devoted to production and 

 commerce; and lastly, observations, chiefly dictated by actual 

 experience, on adulteration and on the substitutes which in the 



