EXCAVATIONS for a new road in Whiteacre Copse, north-west of Compton, Surrey, have afforded an exceptionally good opportunity for collecting fossils from the Lower Gault of this district. Unfortunately, though the cutting passes through the whole thickness of the formation, it is very shallow in the higher parts, and no specimens could be obtained from the Upper Gault. But three unrecognizable impressions of ammonites were seen at the base of this Upper Gault. The tilt of the strata here is 30° N.