PALAEOLITHIC INDUSTRIES, CLACTON AND DOVERCOURT. 13 times (as in 1,4) the tendency is to the left-handed finish, giving the twist in the reverse direction to that seen in 2, 4c. Fig. 3, 1, is a good example of a more ovate form, thin and fairly smooth-surfaced. The finish is exclusively on one face only, but equally along both edges. It is without twist. Fig. 3, 2, is a small example of the pointed implement with untrimmed butt. This form is second in importance to the cordate and ovate group. Like many of the pointed Dovercourt implements it shows a slight tendency to a longitudinal curve : in the face view it turns a little to the right at the point : the axis of the implement being indicated by the arrow above the face view. This feature is one of the characteristics of the Micoque industry. Fig. 3, 3, is the longest implement I have from Dovercourt ; it is even thinner towards the point than the edge view seen in I. e. ; in fact, it appears almost too fragile for its size to be very serviceable. The side edges are slightly incurved ; in many of the Dovercourt implements this feature is more strongly marked, some of them approaching (though none of them quite reach) the ideal form of fig. 1, 6. The lines on the patch of cortex shown in the drawing represent glacial striae, thus proving the implement to have been made from a Boulder-Clay flint. Like many of the Dovercourt implements it is much cracked by thermal fractures. Fig. 3, 4, is the smallest Dovercourt implement in my collection, and represents the more triangular form that is also present. Practically all the Dovercourt implements are in mint condition, and show no signs of damage from use in spite of their fragile thinness. The few exceptions are probably stray deriva- tives of earlier date. I obtained none of the ruder flakes that must necessarily be produced in the preliminary dressing of the flint nodules, but a large number of the thin, often incurved, flakes scaled off in the later stages of the flaking process. It looks as if the rougher preliminary work had been done elsewhere. The Holland Gravel. The cliff all the way from the west end of Clacton (that is to say, as far as from the Clacton channel deposit) to the outlet