Wednesday Sep. 12 - 1934 In the afternoon from Coranville through Sreetley to St Pirrers and to one mile south of Coranville, to see the highly metamorphosed Ordovician sequence at not described but reduced to to outcrop 270 feet against the 3275' less than one-half mile away, See Clark's letter of 11. This is the crucial area bringing two sec- tions originally one and half miles apart now within one-half miles of each other. See Clark's pages 11-12. The sequence and lithology are identical, but the thickness is reduced to 1/4 - th of that to the W. The crucial structure whether the Sutton Out crops may be an out thrust or an underthrust is proven by the clearance to be an underthrust. If it were an out thrust the clearance should be [illegible] but initially dips to the easting therefore an underthrust. The gently thermal Oak Hill sed. are much resisting metamorphosed. This is the main evidence why the