Masson Mine Saturday August 10-91. No quarry at this place. Started out at noon on Grantorville 2/3 mile north of the place. The Grantorville quarries are Salena limestone and just above the Salena shale. These shales are shown in the stream above the dam. See section a few pages forward. At these quarries we found among other things the Schizotheta m. sp. and Lingula Hurlburti. 3 P.M. Started northward arriving 8.30 P.M. at Cleman King house one mile north of Ashelund. No exposures seen along the route.