Sep. 29. Sunday. Spent the morning writing letters. In the afternoon Mr. Kermahan took me to an outcrop of Hamilton limestone about ten miles n.-w. of Thedford on Lake Huron at Stokes Point. About five feet of limestone is here exposed. It rained much of the time with a stiff cold wind blowing from the lake so that we did not look around much. Fossils on the weather beaten rocks are not well shown and appear to be rare. I noticed a large Fistulipora, Stroma- tipora? Spirifer mucronata in abundance S. granulifera, Shepherdonta macula and S. demissa. Also apparently a Lophyphyllum with smaller corals than in Dranchiaci. Also Orthoi' peneldae common. These beds because of the proximity of the Seneca "black shale" lead me to believe them higher than any at Thedford.