1 12 FIELD MUSEUM OF NATURAL HISTORY 
Case I. — Winter scene in the far North illustrating the 
protective coloration of birds inhabiting high latitudes. 
Hall 27. 
BIRDS OF ILLINOIS. 
Devoted exclusively to Illinois birds, and their eggs. The 
specimens are arranged by families in vertical sections, begin- 
ning at the right hand of the entrance from Hall 26; the order 
of classification being that adopted by the American Ornith- 
ologists’ Union. 
