iv TRANSLATOR'S PREFACE. 



the liquid. A petroleum spirit boiling above 60° C. should not 

 be used. Benzene should boil at 80-81° C. (' Die gerichtlich- 

 chemische Ermittelung von Giften,' DragendorflF, 1876.) 



The index will be found more copious than in the original ; it 

 has been compiled from the English text. 



The high reputation of the author and the favourable reception 



accorded to his ' Pflanzenanalyse ' are a suflScient guarantee for 



the value of the vrork. 



THE TEANSLATOE. 



London, October 1st, 1883. 



