"a series of masses seen 14x8 feet. feet in diameter— an extreme abundance of cyathophylloid corals as Cyathiphyll- lum, Blothrophylum, Heliophyllum— and Lophantus gigantea. — Cyathophyllum supreme one seen 8ft in diameter. Towards the top large ramose Favre- sites and large Michelinias more com- mon than below. The cyathophyll ricks, Cladiforas and Favosites make up the bulk of the fauna. This zone is about 4 feet thick. As none of the specimens of this horizon are delicious the collectors, Lyon tells me, have never gathered any of the corals, Upper Coral zone. This zone is sharply distinguished from the lower or middle coral bed in being a compact (lithographic stone-like) dark colored limestone in heavy beds of 1 foot in thickness. The corals are hard to distinguish from the rock and