1 86 



RELICS OF PRIMEVAL LIFE 



Nummulites it also conforms in its tendency to form 

 a supplemental or intermediate skeleton with canals, 



Fig. 48. — Section of a Nutnmulite, from Eocene Limestone of Syria. 



Showing chambers, tubuli, and canals. Compare this and Fig. 49 with 

 Figs. 28 and 29. 



Fig. a,^.— Portion of Shell of Calcarina. 



Magnified, after Carpenter, {a) Cells. {p) Original cell-wall with tubulL 

 {c) Supplementary skeleton with canals. 



though the canals themselves in their arrangement 

 more nearly resemble Calcarina, which is represented 



