which had enabled to interpolate the Tripidilepis beds between the Stromatopore and Aeevularia beds. The Aeevularia and Tripidilepis beds are identical. This 30miles afternoon I will go down the lake to examine the rail road cuts and the quarry there. In the afternoon walked down to the quarry on the C.& G., M. R.R. about three miles apart. The following is a section of the quarry. drift Coral clays, blue. 3 ft. Pale buff limestone 2 ft. Black bituminous shale with abundant Stromato- porites 2" to 2 1/4" Thin bedded, pale buff limestone, fracturing irregular and conchoidal. With Alveolus and Chrysopora abundant. 7 feet. Soft heavy bedded limestone, weathering down liberating shells mainly Pentamerus. *......... Crinoid algae present. 1 4 feet. Pale buff limestone, heavy bedded towards bottom with fur finish. Stromatoporae present. 15 feet. Dark, compact Limestone in beds of about 12 in thickness with black shale partings. 9 feet. Lake