THE PRESERVATION OP EOZOON. 



107 



and essential. In illustration of this, I may refer to the 

 highly magnified canals in figs. 28 and 29. Further, 

 it is evident from the examination of the specimens, 

 lat the chrysotile veins, penetrating as they often do 



\TiG, 23. Cxsts of Canals of Eozoon in Serpentine, decalcified and 

 highly magnified. 



Fig. 29. Canals of Eozoon. 

 Highly magnified. 



liagonally or transversely across both chambers and 

 [walls, must have originated subsequently to the origin 

 land hardening of the rock and its fossils, and result 



'om aqueous deposition of fibrous serpentine in cracks 

 ["which traverse alike the fossils and their matrix. In 



