and in layer from 8 to 10 inches the overlying "green shale" are thinner but, In these dumps the fossils are numerous and of the same species as occur at St Paul and Pineapolis. The limestone makes a good marble but of poor color and is cut into slabs in a mill near by operated by water power driven from a large spring coming out of the Salina Limestone. Above the green shale come some limestone and shale of a blue-white color and holding a Salma fauna. The green shales are not over 10 feet thick. Of this thickness I saw eight feet.