. 
ata TRANSLATOR’S PREFACE, 
Besides the above noted and a few minor additions, I have been 
kindly favored by the author with numerous notes, comprising the 
results of more recent observations or research, which are dis- 
tributed throughout the work. 
With these brief statements, the translator ventures to express 
the hope that the work of his honored friend and master may also 
be received in America, as in Europe, with the favor it so richly 
merits, and, while aiding in the dissemination of general know- 
ledge, may likewise incite to the further substantial development 
of true pharmacognostical science. 
MADISON, Wis., March, 1884. 
