8o 
MANUAL OF TAXIDERMY. 
such work should be usually placed behind glass, 
as, in fact, is true with all mounted birds, especi- 
ally light-plumaged birds, which are liable to 
become soiled through exposure to dust. Mounted 
birds, not kept in moth-proof cases, should be care- 
fully dusted at least twice a week to prevent the 
attacks of moths. 
