290 



THE MONTHLY BULLETIN. 



XAX. 



< 



z i^ 



B 





s> 



E 



F 



Fig. 291. — Mounting Lepidoptera. A, triangle sliowing metliod of folding paper. 

 First fold on line A B, then on A D and C B, and then on B F and B A ; B, speci- 

 men in folded triangle ; C, pinned specimen ; D, method of stretching ; E, cross-section 

 of stretching board ; F, specimens placed in permanent cabinet. 



