PREEACE. 



Without the guidance and assistance afforded by Wight 

 and Arnott's Prodromus -which rendered the compilation of 

 the first volume a comparatively easy task, the present has 

 required a far greater amount of labour. In it are included 

 thirty-six Natural Orders all of which are now published in 

 a collective form for the first time, and this circumstance 

 the Author trusts will render it a more valuable possession 

 to the Botanical Student than its predecessor. 



