2836 Windson July 25-Tuesday. Spent the entire day at Windoners Point one mile of the Avon from the two bridges collecting in the "Upper Windon" lime- stone. Seemed quite a lot of excellent material. The "Upper Windon limestone" is between 30ft 40 feet thick and in the upper two thirds is of the same nature as the Chiller quarry dolomites. Below this the beds gradually change into a softer yellowish dolomite, the fossils become rarer and finally are almost none before the gypsiferous 'gme' is attained which underlies this dolomite. (See beyond) The gme from which our finds came is near the center of the "Upper Windon limestone". Here the shells are wonderfully abundant, are scattered about without regular order, usually of both valves but some single ones are present. It is only where the beds are considerably weathered that we can get the shells out. Otherwise one can