Fig. 52. — Acervuline Variety of Eozoon, Cote St. Pierre. 



(a) General form, half natural size. (3) Portion of cellular interior, magnified, 

 showing the course of the tubuli. 



^d)^ 



+ 50 

 Fig. ^^.—Archaospherince from C$te St. Pierre. 



(a) Specimens dissolved out by acid, the lower one showing interior septa. 

 {p) Specimens seen in section. 



S05 



