202 FLORA HISTORICA. 



over the fire in a glass pot, till about a third part 

 is consumed ; then some rock-alum is to be put 

 into it, more or less, till it becomes clear, and ac- 

 quires its fine blue colour ; after which it is poured 

 into shells for use/" — MartyrCs Miller. 



The root of this Flower de Luce was formerly 

 used to prevent beer becoming stale, by suspending 

 it in the cask ; and it was in like manner suspended 

 in casks of wine, to communicate both its taste and 

 smell to the liquor. 



