1916.] THE MOUSTERIAN PERIOD. 391 



I shall now describe a series of deposits to be found in 

 the quarry at Miellette Bay, which fairly represents the type 

 of evidence we have to depend on for the facts of the inter- 

 glacial period. This evidence is at ouce strong and weak. It 

 is strong in as much as the sands and gravels are well placed 

 under the upper clay, and it is weak in as much as the lower 

 clay is uncertain. It may therefore be said to be simply 

 passage beds over the 25 feet beRch ; in fact, but for the 

 fortunate find made by Colonel de Guerin, to whom I was 

 showing the beds, of pieces of charcoal in the central beds, I 

 would have felt even more than I now do that the Mousterian 

 period was very weakly represented. The presence of 

 charcoal which I have since abundantly confirmed and 

 extended to other sections gives me great confidence in the 

 placing of the beds in question. 



The section is represented in diagram No. 13. 



The beds consist of gravels, sands, rubble bands and a 

 deposit of the upper clay. Taking these in order from the 

 bottom upwards, they are as follows : — 



1. — The 25 feet beach. To see this the back or sea-side 

 of the quarry must be visited. 



Diagram No. 13. 



Miellette Bay Section. 



1, is not shown in this section bnt is in the Diagram ; 2, Red Gravel ; 3, Re- 

 distributed lower Clay ; i, Red Gravel, same as 2 ; 5, Charcoal bearing rubble 

 band, two layers ; 6, A very even band of Clay. A good example of the 



deposit. 



2, Lower, 3ft. 6in. ; 2, Middle. 1ft. 6in. ; 2, Upper, 9in. ; 3, Clay, 1ft. ; 5L, Lower, 

 lft. 6in. ; 5, Upper, 9in. ; 6, Clay, 3ft. 



2. — A compact hardened ruddy -coloured sand. The 

 surfaces of the grains are coated with iron oxide. This layer 

 is evidently a washed-down surface sand (coarse) from higher 

 levels. This sand has been eroded before the next layer was 



