540 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



(a) Requires a mixture of both stove and greenhouse : there must 

 be at least one stove plant, and at least one greenhouse ; (b) allows an 

 alternative of either one, but excludes a mixture from both. 



Generally it is the intention of a schedule to leave it to the option of 

 the exhibitor whether to make up* his group from either Or from both 

 sections. In such a case the class should be expressed thus in the 

 schedule : — 



Stove and/or greenhouse plants. 



