THE DAWN OF LIFE 



137 



lari^er canals arc filled with serpentine of a liijht 

 L^reen or olive colour, and the finer tubuli are in- 

 jected with dolomite. It may also be observed 



Fig. 36. — Decalcified Eozoon, in section, slii^hlly enlarged. 

 Showing the character of the sarcodous laminae now replaced by Serpentine. 



that the serpentine in the larger cavities often 

 shows a banded structure, as if it had been de- 

 posited in successive coats, and the canals are 

 sometimes lined with a tubular film of serpentine, 



