THE BREEDING OF INSECTS. 



335 



soil without unduly wetting the soil. A cross sec- 

 tion of this cage is represented by Fig. 296 ; the parts 

 are as follows : — a, plate of glass forming the back 

 of the cage ; b, space filled with moss ; c, porous tile ; 

 d, thin space filled with soil in which seed is sown 

 and the insects to be watched are placed ; e, plate of 

 glass forming the front of the cage ; /, a sheet of 

 zinc for darkening the cage — this is removed when 

 observations are to be made ; g g, sections of the 

 wooden frame of the cage. 



FIREFLIES.* 



As o'er the face of Evening fair 



A shade of twilight came, 

 Lost sunbeams, tangled in her hair, 



Fell into drops of flame. 



Charles Henry Luders. 



* From The Dead Nymph and other Poems, by permission of Charles 

 Scribner's Sons. 



