2i6 MINUTE MARVELS OF NATURE 



But most wonderful of all is the withdrawing of 

 the tail filaments, seeming almost like the work 





Fig. 142. The perfect May-fly just emerged from its 

 subimago skin, which latter can he seen on 

 the grass blade. Natural size 



of a magician, as these appendages, nearly three 

 times the length of their cases, are withdrawn. 

 If you saw a man draw a six-foot sword out of 



