region is probably not less than 2200 feet thick consisting of dark carmagious, shale and yellowish or buff sandstones. The shales predominate in the lower portion while the sandstones are best developed in the upper. Upon the whole however there is more shale than sandstones. The latter are usually in thin seams. In the gorge of Kerginirswall one sees the very test evidence as to the cause of the shales being red, it is in the region that Steership found or smelt burnt shale accompanied by sheets. There are no sheets present here and I cannot help thinking he must have taken some of the trop talus for shale. As for the cause of the red color it is plainly evident that weathering has all to do with that appearance. When the beds are carefully cut or broken down then the shales are hoekish in gray. On naked hill sides where erosion is slow there the shales are red with the surface crust crick once or less small flakes. In the streams where cliffs have stood for some time, for instance the bed one which we collected plants the red color begins to appear. Upon breckly then the inside is again seen like hack. At various altitudes these red beds appear but at the same level when exposed here be again they are dark colored,