
SOUTHEAST WING 
MAMMALS OF THE WoRLD 
Continuing east from the hall where are the apes and monkeys, we 
pass the elevators, to enter the hall of the Southeast Wing, devoted mainly 
to mammals of the world. The exhibits read like the pages of a book 
from left to right, being arranged to bring out the phylogeny 
or past history and development of the chief divisions of 
mammals. The specimens are arranged not on shelves but 
close against the background of the case on small projecting supports 
and from each a cord has been stretched down along the background to a 
Mammals of 
the World 
diagrammatic representation of the geological periods. In this way are 
indicated the relationships of the various animals to one another as well as 
the geological age in which each animal probably originated. Circling the 
hall above the cases is a mural frieze representing marine scenes, which 
serves as a background for groups of porpoises, dolphins and other small 
members of the whale family. The most striking object in the hall is the 
life-size model of a sulphur-bottom whale, seventy-nine feet inlength. The 
Model of original of this specimen was captured in Newfoundland and 
Sulphur- the model is accurately reproduced from careful measurements. 
bottom As can be seen by examining the models of a whale’s head 
Whale attached to the pillar, the whalebone which takes the place 
of teeth hangs in great plates from the inside of the upper jaw. This 
whalebone acts as a strainer in the mouth of the whale and extracts the 
small animals from the sea water which the whale takes into his mouth 
when feeding. The food consists mostly of tiny crustaceans less than an 
inch in length. Although whales and porpoises live in the water they are 
not fishes, but are warm-blooded and breathe by means of lungs, not gills. 
The whale must come to the surface to breathe and the so-called “ spouting”’ 
is merely the result of the warm air being expelled from the lungs when 
he breathes. A whale does not spout water as is commonly supposed. 
Models to seale of the other whalebone whales, and the toothed sperm 
whale, and skeletons of the smaller whales are hung near for comparison. 
The case along the gallery rail contains insects of many kinds which are 
placed here temporarily — butterflies, moths, beetles, spiders, locusts, 
katydids, ete., in infinite variety. Protective coloration and mimicry are 
well exemplified. 
SOUTHEAST PAVILION 
Hau or Insect LIFE 
Proceeding east, we enter the Insect Hall. The installations in this hall 
point out the relationships, through origin and mode of life, of insects to 
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