About a mile south of Nash-town a short time off east road, and about half a mile eastward from the junction the Ohio shale rests on the Gnat Orchard shale, with not the presence of any intermediate Silurian limestone. This magnesian limestone payments are common in the upper party of the Gnat Orchard clay. North-east of Nash-town 5 mi., the Ohio shale rests on Silurian, from 3-15 in in thickness, underlaid by clay = Gnat Orchard. On Snyder Ridge between Escalapin Springs & Nash-town, the Sunbury black fissile shale is 15 ft foot thick, and on this is similar shale, 1ft, but purplish. Practically no Silurian limestone between Escalapia Springs and 3 mi north, above the Gnat Orchard clay, except at Break-O-Run Road at Nash-town. Collected West Union Cliff fossils at the Spring on the Overbay Farm, 1 1/2 miles S of Glen Springs, on Big Salt Fork Creek road to North Thickness of West Union Cliff 31 foot 300 yards South of Osa Carrington's home 1 mi. S west of Glen Spgs, same way. The West Union Cliff is exposed along the entire Salt Fork Valley from the foot of the ridge immedi- ately south of Escalapia Spring to within 3 miles of Vanceburg, a short distance south of Valley; the West Union Cliff is so far above creek level that it is proba- ble that some of the limestone elements in the lower part of the Gnat Orchard shales are present. City ledge Park just across Creek, 1 1/2 miles south of Garvin Rm. 1/4 mi from E Powders store, or Charley Buckells farm,