Fig. 35. — Structure of sviall spenmeit of Eozoon, calcareous i?iatter 

 removed. 



I. Natural size. 2. Acervuline cells of upper part. 3. Group of the same coalesc- 

 ing into a lamina with tuberculated surface. 4. Laminae with tuberculated surfaces 

 in section. (See also Fig. 36.) 



155 



