IMBEDDING MANIPULATIONS. 



171 



tray being placed on cork, the object may be fixed in position 

 in it whilst empty by means of pins and the tray filled with 

 melted mass at one pour. The pins are removed when the 

 mass is cold. 



In either case when the mass is cold, the paper is removed 

 from it before cutting. 



To make paper trays, proceed as follows. Take a piece of 

 stout paper or thin cardboard, of the shape of the annexed 

 figure (Fig. 1); thin (foreign) post-cards do very well indeed. 

 Fold it along the lines a a' and b b f , then along c c' and d d' ', 

 taking care to fold always the same way. Then make the 

 folds A A', B B', C C', D D', still folding the same way. To 

 do this you apply A c against A a, and pinch out the line 

 A A, and so on for the remaining angles. This done, you 

 have an imperfect tray with dogs' ears at the angles. To 

 finish it, turn the dogs' ears round against the ends of the box, 

 turn down outside the projecting flaps that remain, and pinch 

 them down. A well-made post-card tray will last through 

 several imbeddings, and will generally work better after 

 having been used than when new. 



A r 



FIG. 2. 





FIG. 1. 



To make paper thimbles, take a good cork, twist a strip of 



