PLANTS OF WAX 



that neither can be seen, and that the excess of wax has run out around 

 the leaf. The manipulations of casting may be performed in a few seconds. 

 Much time is saved by using three molds in rotation so that while 

 one is in use a second may be warming in hot water and a third with its 

 cast may be cooling in the cold bath. 



A COMPLETE LEAF OF THE PITCHER PLANT 



And the Molds Used in Making One-Half of It 



A Pair of Molds is Needed for Each Half of the Leaf, the Keel, Shown in the Picture 

 Being Made on One of the Halves 



In the case of large, heavy, and, especially, deeply scalloped leaves 

 such as occur on many tropical plants, it is necessary to make a some- 

 what elaborate complicated framework, such as is indicated in the figure, 



11 



