IJO EELIQUI^E AQUITANICJE. 



the same outline as the pebble. One of the rubbed faces (that shown in the 

 figure) is to the outline of the stone as 9 : 12 and 8 : 10 ; the other is as 18 : 24 

 and 15 : 20. The surface all over has a dirty red aspect (deep-red mixed with 

 dark bluish-grey); under a lens, in sunlight, it glitters with minute specks of 

 mica ; some irregularities on one surface contain reddish sand-grains, loosely 

 impacted, with micaceous dirt ; and both of the smooth surfaces show trans- 

 verse stride. [The cross lines of a former set of strife, so plainly marked on the 

 left hand of fig. 3 a, are barely visible.] 



This has been a Rubber, without doubt; and sandy materials have been 

 acted on (intentionally or otherwise), as the striae and the lodged sand-grains 

 indicate. The red colour at once suggests that hematite has been ground 

 down with this implement, the colour being general over the surface, though 

 stronger on the much smoothed planes; and on the removal of the surface 

 by a knife, only grey, minutely speckled with red and brown, appears. (By 

 inadvertence, after a superficial examination only, this interesting specimen 

 was mentioned as a " flattish oval pebble of dirty-red jasper " at page 61 .) 



Erom La Madelaine. 



French millimetres. English inches. 



Diameter, long 75 .. . . . 2-953 



short 65 2-559 



Thickness 28 1-102 



Figs. 4 a and 4 b. An oval and flattish pebble of quartzite, nearly white within, 

 and brownish outside. A round shallow hollow has been neatly chipped and 

 ground out of the middle of one surface, small faint pits (apparently due to 

 chipping) remaining within the hollow towards the margin, whilst the middle 

 is smooth or nearly so. The hollow was excavated after the discoloration of 

 the exterior of the pebble, and is not itself at all stained. The opposite face of 

 the pebble is somewhat bruised about the middle, just where it touches the 

 ground when at rest. 

 From Laugerie Basse. 



French millimetres. English inches. 

 Diameter, long 200 7-874 



short 142 5-591 



Depth of the hollow 5 0-197 



From the base of the hollow to the 1 



., , I 40 1-575 



other face J 



Diameter of the hollow, long 45 1-772 



short 42 . . 1-654 



