166. 1/2 mi up branch - Medlock branch, Der. L 22 ft natural desiring, circular loose. 70 ft natural Level plane of Dand Brewer 7ft nat. gravel Shale bed in brick Farm house to Carzy county: 1/2 mile more. From north of Medlock branch to Rollington - 2 mi. And to Fland and - 2 miles. 167. Duffin Layer = 10 ft. Chaly Der. L 1 ft exposed Sandy layers at face of Devo man, not exposed will emerge for measurements. Shaly Ordovician li horizon exhed on. Possibly same dth above 168. In Amherst < R 6/7 Shaly layers 1ft hard fossils connect me. 7 2 ft arg. with fossil ferns 5 1/2 fissile remains at flat under seat top 1ft Leaflet slabs above 14" arg. & all time in. 4 1/2 ft interval. with sand. Duffin amt not measured 9ft Chaly Der. L. called sandy layers 6 ft massive arg. dth unknown R> according to section 168, the first ceding sect ms 167, reca consist of Shaly Ordovician immediately over the Amherst, 169. Last Ordovician. 170. First Black Shale South of Parksville I found Ypthrth in Polygonal form = 51 Yrs. I deal place to ngasme St Louis - Black Shale section. Milledgeville. Half a mile NN part where Black Shale beds turn to slightly East toward Morganville, also as noted by Wirt to William Sover the land line just below reading William Sear, Departs a Shaly Ordovician Rock age uncertain. Dermaian about 6 constant of usual layer thin Just beyond thier point where its Black shale picks turning East through Bridewell's Providence and, Plate joiner at C. Recently upper Fairman with Date layer above. a thin Morganville.