"the red shales pinch out and give way to the green sandstone. In some cases one sees careful out places filled with sandstones then - This is certainly due to a transverse action cutting not the fine regular beds but later filling in the same. Then one is down about 15 feet beneath the top of the Medin, the alternating beds of shale and sandstone become decidedly irregular and then one begins to meet out comminated Lingula acuminata. In other words the shallower sea becomes filled of transverse layers practical ones within the zone of Continental deposits. These lower beds also do not show any room bedding and more shales prevail than the redded sandstones. Then for about 12 feet below the series just referred to (or 27 feet beneath top of Medina) occur the Pilegypsin collected - the regular Medina species associated with the Lingula. These red Medinina shales continue about 18 feet below or in other words the red shale Medina ends at the top is about 30 feet thick. Then follow a great ammonous limestone affiliated with Helyspar and Defendilina careysiana about 4 feet thick (I got these points before at Stannister on the so-called Clinton then). Then a green tinnite shale with a