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DEPARTMENT OF ZOOLOGY 
Hall 25. 
GENERAL ORNITHOLOGY. 
In this hall and in the one following are represented about 
SSO species illustrating the characteristics of about 100 families. 
They are arranged in the wall cases systematically, beginning 
with those which have lost the power of flight and the Diving 
Birds, and ending with the highly specialized Passeres or Perch- 
ing Birds. In this hall are exhibited foreign Birds, the com- 
mencement of the series being on the east side of Hall 26. 
Center Gases. 
Case A.— A group composed of an adult African Ostrich, a 
chick and an egg. 
Case B. A group illustrating the peculiar domestic arrange- 
ments of the Rhinoceros Hornbill. 
Case C— Examples of albinism in Birds and Mammals. 
On the west side of the hall, in the long wall case, is an 
extensive series of skulls forming part of the Osteological col- 
lection exhibited in Hall 23. 
Hall 26. 
A systematic collection of North American Birds is shown 
on the west side of this hall; on the east side foreign Birds 
are exhibited, the series being concluded in Hall 25. 
Center Gases. 
Case A. “A Surprised Mother,’^ representing a domestic hen 
as mother of a lot of ducklings plunging into a basin of water. 
Case B. A group showing the nesting site and a pair of 
Prairie Chickens. 
Case C — A group of Quail in various attitudes. 
Case D.— Winter scene in the far North, illustrating the pro- 
tective coloration of birds and mammals inhabiting high lati- 
tudes. 
Case E.— A group of American Eider Ducks. 
Case F. A group of American Robin, showing the nest and 
eggs, and the parent birds much excited by the approach of a 
Black Snake. 
