July 31 Wednesday Louisville Ky. Just visited the cement quarries at Portland in West Louisville. Here the top rock is cherty and gristly, forming amy which chars, yardellanus is most abundant. These layers are about 4 to 5 feet thick. The Cement layers are close beneath immediately below. While we did not see the Ohio shale yet the Hamilton shipp's presence in the Huec or clade surface. Here the Niagara quarries about Crescent Junction maybe seen contact between the Louisville Niagara and the Onondaga. The top after a quarter mile distance of the Niagara is full of crags following the Onondoga coral reef. In the latter are for me more crags, such as Michelinae, Spirifer separatus to Spirifer acuminata, Pholthe-nta cinctum and I demissa come in about 80 ft far higher. This is a remarkable phenomenon to see the Niagara limestone conformably followed by the Onondoga limestone. A limestone coral reef or another coral reef conforms so that the eye does not detect the hiatus of the Kealiff, Doline, Heldebury and Clifton any between the two. This art after that one sees such discordances in limestone. The Niagara top is for me Jeros - Delicifits, Halysite, Eriddphyllum, Sturmetone, Chardona