Manitowaning August 8 1912 Thursday. Left at 6 A.M on the small steamer Manitowin for Little Current. The land is wet and foggy. About 45 miles east of Little Current the tip of the Trenton is exposed and one can study here the upper 10 feet. It's a thin bedded series of greenish magnesium shale limestone replete with fossils. The preservation however is not the best and much of the rhyniol Calcite is replaced by crystalline calcite. The beds are crowded with R. macrhuscus, Cyrtodonta and an abundance of Trygona. The Crillingford shale overlies the Trenton in the same hills and about 10 feet if it occurs on the raised one hill-side. At inter- vals are the hardier living ones. The fauna is far less prolific here than at Crillingford and an occasional tart of Opssites caradocin. occurs. Mophtitis are far more common and with these are associated Leptalus bps, L (the large form), Lingula arrdentia, Articulidae and Tiarithrus feedi. These shales are not calcic and bituminous here, nor so fine