BULL. GEOL. SOC. AM. 



VOL. 6, 1894. PL. 14. 



Figure 1. — View of under Surface at a right Angle to the Bed-plane. 



Figure 2. — View of same Specimen at an Angle of 45° to the Bed-plane. 



PITTED LIMESTONE OF THE BLACK RIVER FORMATION. 

 From Little Cloche Island, Ontario, Canada. 



