392 THE MOUSTEKIAN PERIOD. 



added, for a part is thicker than the remainder, the deposit 

 having been cut down and the missing thickness filled in with 

 the next bed which does not cover the whole layer but only 

 the removed portion. 



3. — A layer of sandy clay, also red, but less so than 

 No. 2, filling up the gap in the preceding layer, the two 

 showing a line of erosion smoothing them to a common height. 



No. 4. — Is an irregular deposit of the same red sand as 

 No. 1. Its upper surface is not so straight a line as the lower 

 ones, pointing to a weathering rather than a powerful eroding 

 agency. 



No. 5. — Is a land surface consisting of fallen rubble and 

 pluviatile gravel. This, I think, is identical with the " old 

 land surface " of the Jersey Belcroute cliff section. It was 

 in this section that the charcoal was found. I consider it to 

 be the result of rain wash, copious I admit, with the debris of 

 the top of the " Hougue " brought down. The charcoal is in 

 pieces of the size of a pea and smaller. These pieces are 

 evidently wind-carried and have fallen on the accumulation. 

 In one place of this layer there is less of the stone rubble and 

 more of the red sand, but there is so much fine charcoal dust 

 that the redness of the sand is masked and the layer, only one 

 inch thick, is blackened. Here we have a layer of great 

 importance, for the deposit being under the upper clay and 

 showing the presence of man by the charcoal, must be 

 Mousterian, and thus gives a definite horizon to the whole. 

 The upper portion of the band contains the charcoal and few 

 stones, the lower contains the larger stones and less fine 

 material and clay. All the stones of this layer are angular. 



I have hesitated in placing the two parts of this band 

 together, but I think they show as parts of the same deposits 

 varying only by extension of the time occupied in its forma- 

 tion. 



No. 6. — In this layer we have an example of the Upper 

 Clay. Here it is only three feet thick, but it is remarkably 

 regular in its thickness and in the lines which mark its limits. 

 There are no stones in it ; there are no pebbles, no flint 

 implements: no stratification. The deposit is uniform in every 

 sense. The colour is a bright yellow and does not vary. 

 The particles are amorphous. It is indurated but pulverises 

 easily, and beaten down makes a hard and solid floor. The 

 deposit seems to have been formed from suspended clay dif- 

 fering from the same formation already described under "The 

 Clays." in that all the contents of the upland deposit were pre- 

 cipitated before the clay reached the position we now see it in. 



