Friday August 26-1910, Birchy Cve Left Birchy Cve at 3.20 P.M. Again I see nothing more than a greak slate. Late series with great quartzite cut the way into Hunter Mouth. The Hunter has a very narrow gap in the agimy Marble Head and here abouts there is a great thickness of probable dolomites that seem like more or less metamorphosed. They appear sure to stand on end or at high angles. These are evidently the limestones 3 to 11 that we have been looking for. Just as soon as we get past of the limestones (Marble Head) the Hunter Valley widens out and is not at all a V or U shaped valley. It can only be called a mature valley but is advanced beyond the earliest stages.