end of the quarry has been a puzzle which I have tried in vain to satisfactorily solve. I have thought for a long time that we were in a bend of the river but could not decide which way it curved. The slide, by exposing a section right across the shifting river-banks and part of the beds has made the thing much more easily understood. It gives us more of the history of this ancient river, and how it did its work, and will give us more practical knowledge relating to the making of the quarry.