126 DIRECTIONS, ETC. 



have remained yellow some weeks ; if not dried re- 

 peatedly before the fire, and again after they are 

 mounted on paper, and kept in a dry place. 



Purple flowers require as much care, or they soou 

 turn a light brown. 



White flowers will turn brown, if handled or bruised 

 before they are dried. 



Daisies, Pansies and some other flowers, must not 

 be removed from under pressure for two or three days, 

 or the petals will curl up. 



The best cement for fixing the specimens on to the 

 paper or card-board, is gum-paste.* It is composed of 

 thick gum-water, and flour mixed in warm water, add 

 the two together, warm, and of a consistency that will 

 run off the hair-pencil. 



As all dried plants (ferns excepted) are liable to be 

 infested by minute insects, a small quantity of the poison 

 corrosive sublimate should be added to the paste, which 

 it will also preserve from mould. 



* Some prefer Gum Tragocanth. 



