iv TRANSLATORS PREFACE. V* 



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,' Dragendorff, 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 sufficient guarantee for 



the value of the work. 



THE TKANSLATOE, 



LONDON, October 1st, 1883. 



