of the Hamilton fossils. The lower 10 feet are of heavier beds and apparently more magnesian and less fossiliferous. This is the zone that is desired for lime. The upper 10 feet are of thinner beds - even shale. However no separation can be made at this point for the fossils in both divisions are identical. In places the beds are glaciated and deeply channelled (not so pronounced as at Kelly's Island). The Lakeside quarry seems to be operated by the Kelly's Island Lime Co. These beds carry more brachiopods than the same beds on the south side of the lake at a. Here they are more brachiopod bearing, there coral reefs. While the game corals occur in both places yet they are more abundant in the north. In the north the beds are more cherty and the fossils nearly all siliceous. This the alteration to do with being near a shore or is this alteration due to leaching in the north at points here because of the Black Rock cover? It seemed to me that the Chama cutis are most abundant in the coal layers. They are present in good abundance and especially in the lower 10 feet. They are far removed from land,