MUSCA CARNARIA, 331 
quered grey and black — legs black — 
length about four lines. This fly is not 
so broad in proportion as the blue fly, 
and the body has a greater curve down- 
wards. 
Lucy, I think I should easily know 
these flies from one another. 
Mother. I hope so. Out of the pro- 
digious number of species which belong 
to this tribe, there are many others 
w^orthy of your acquaintance ; but we 
must reserve them for some future occa- 
sion, and proceed to-morrow to another 
genus. 
Before we part, however, I will amuse 
you with a curious circumstance of these 
flesh-eating larvae : — a celebrated foreign 
anatomist actually contrived to enlist 
them into his service. 
Lucy. Oh 1 mamma, how is that 
possible ? 
Mother. In making certain kinds of 
anatomical preparations the object is to 
show the tendons and sinews, independent 
of the fleshy parts. These maggots only 
