BULL. GEOL. SOC. AM. 



VOL. 29, 1917, PL. 



FiGr:RE 1. — Laroe axd small Oolites. (x25) 



Figure 2. — Four narrow Zones in the outer Portion of the 

 large Oolites, (x 87) 



OOLITES IN THE YELLOW SHALE 



