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 

 the World or P as ^ hi s t 0] T an d 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 

 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 in length. 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 scale 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, etc., in infinite variety. Protective coloration and mimicry are 

 well exemplified. 



SOUTHEAST PAVILION 



Hall of 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 



