Later walked east along the Penn. R.R. and there I saw the trace of the Silurian. From the top of the hill I could also see that it made ripples in the Susquehanna Riv. The Hudson Rivr cannot be made out here as the relief is not held and then for the Silurian is overturned, and faulted (some compensating faults). ? Salina Shinbedlet Chenango gneiss Chenango grit "60 to 70 feet" (Cam. Barry) Plairangrunt. At the base is a quartz kettle bed sand three foot thick. Could not make it out. The kettles are well rounded and large averaging 2 to 3 inches; some go to 5 inches and many are smaller. I should say that quite of the bed are kettles. Smaller kettles 1/8- 3/4 occur in the next 10 feet. The rest of the series is a coarse quartzite, the whole is said to be 60 to 70 feet thick. This thickness is correct as one sees it now but certainly some, probably not small, is faulted out. Seemingly it does not ex- ceed 100 feet.