( 32 ) 
(which the fine powder, that falls 
from and {unrounds fuch infects as 
are attacked, quickly difcovers) im- 
merfing them in rectified fpirits of 
wine immediately kills them without 
injuring the fly. And if a little corro- 
live fublimate be difiolved in the {pint 
•they are immerfed in, it will prevent 
them from any future attacks. 
Camphire kept in die boxes is alio 
a good preventative. 
The flies may be either kept in 
boxes of this kind, or in fuch cabinets 
as the collector may think proper. 
The bottom of the drawers, if in 
cabinets, fhould alio be lined with 
thin cork, covered with white pa- 
per. 
Me- 
