Plate VIII. 



■111 





/' ;'■ 



X 60 



Eozoon and Chrysotile Veins, etc. 



Fig. 1.— Portion of two laminse and intervening serpentine, with chrysotik- 

 vein, (a.) Proper wall tubulated, (h.) Intermediate skeleton, with large 

 canals, (c.) Openings of small chamberlets filled with serpentine, (s.) Ser- 

 pentine filling chamber, (s^.) Vein of chrysotile, showing its difference from 

 the proper wall. 



Fig. 2.— Junction of a canal and the proper wall. Lettering as in Fig. 1. 



Fig. 3.— Proper wall shifted by a fault, and more recent chrysotile vein not 

 faulted. Lettering as in Fig. 1. 



Fig. 4.— Large and small canals filled with dolomite. 



Fig. 5.— Abnormally thick portion of intermediate skeleton, with large tubes 

 and small canals filled with dolomite. 



