II. RISE OF LIVING THINGS 



Hall of Developing Life 



The north corridor off the Main Hall is devoted 

 to a presentation of the development of animal life, 

 according to one of the simpler classifications. Such 

 an exhibit serves a two-fold purpose of suggesting 

 the evolutionary nature of the development of life 

 from the simpler forms such as the Protozoa, up to 

 the Chordata (vertebrates) with their central ner- 

 vous system, advanced circulatory and respiratory 

 systems. It also presents in a broader way the classi- 

 fication system by which zoologists identify and 

 describe all living animal forms. 



11. ORDER OF APPEARANCE OF LIFE 

 FORMS. This exhibit illustrates the phyla (plural 

 form of phylum) of animal life with examples of 

 each. 



Then follows a series of exhibits extending down 

 the entire length of this hall illustrating the major 

 groups. 



12. PORIFERA. The sponges. Examples shown 

 include Venus's-flower-basket, Maiden's Glove, Soft 

 Bath Sponges and many others. 



