with the greater abundance of L. pyramis near the top occurs Spirifera (rarely) of the D. exaratus or medialis type. This is also the zone from which Collectors gather most of their shells. It also has considerable crinoidal matter. This zone is about 5 feet thick. All the following beds are continu- ous in their lithic character becoming gone and more granular (by grinding) up- ward. Stepheodonts gone. A whitish granular heavy bedded limestone with numerous scale marked lines of chert in the upper half. Below occur numerous Stepheo- dontus and in the cherts the Bryozo- of which Fenestella shumardi is most common. It grows spirally and in folds 6 to 7 inches in diameter. The nuclear crinoid bed of the