OF FLORA. 187 



Bones calcined to v/hitenefs, of each half 

 a handful 5 beat the whole together, and 

 lift the Powder through a very fine fieve. 



225, Grey Pozvder. 



To the Refiduum of the preceding add 

 a little Starch and Wood-allies in fine 

 powder •, rub them together in a mortar 

 fome time, and then fift through a fine 

 hair fieve. 



226. Another. 



Take the Marc or Refiduum of the 

 White Powder, mix with it a little Starch, 

 Yellow Ochre, and Wood-aflies or Baker's 

 Coals to colour it. Beat the whole well 

 in a mortar, then fift it through a hair 

 fieve. Beat the coarfer parts over again, 

 and fift a fecond time -, repeating thefc 

 operations till all the compoiition has 

 pafTed through the fieve. 227. Flaxen 



