2194 13 Manitowaning August 6 1912 Tuesday. Spent the morning collecting Oligocene corals at Fossil shale about 6 miles to the south of Manitowaning. The corals occur as pseudomorphs, a snow white silica, they lie beneath the vegetation in the woods. They are quite plentiful, especially the compound forms. Eridophyllum occurs in colonies of to several futacres. Favosites farrows of to 16 inch acres. Halysites are fairly common, in small and very large enalites, Dyingforia is not common. Stromboids in two species are fairly common. Cup corals in at least half a dozen species are common-- but good nos impossible to get. Of brachiopods there small Pentamerus Magnus (less than 2 miles long), Orthus Platellulum and Atrypon reticulatum. Otherwise nothing but comminuted crinoid material. These corals occur in the lower part of the Neogene and overlie sort of a grey, crystalline dolomite.