'AO 



AXCIKNT AIM 



'KOVINCE OF CHIRIvri. 



t sIk.ws the rou-li flaked 

 iddli- ])(jrti()ii exhiliits an 



evenly picked surface. The I'ock ih a dai'k slaty looking tufa, the siir 

 face of wliich disjilays ring or rosette-like markings, reminding one 

 of the polished surface of a se( tuni nt tnssil coral. These markings 

 probably come from the decompnsition ot the mineral constituents of 

 the rock. 



The implement given in Fig. 15 may be taken as a type of a large 

 class of beautifully finished celts. It also is made of the dark tufa, 

 very fine grained and compact, resembling slate. The beveled sur- 

 faces of the blade are well polished, the remainder of the surface being 

 evenly ])icked. The hexagonal section is characteristic of tlie class, 

 but it is not so decided in tliis as in some other pieces in wliich the 

 whole surface is freshly ground. 



The contraction of the lateral outline and the siidden expansion on 

 reaching the cutting edge noticed in this specimen are more clearly 

 marked in other examples. The small celt shown in Fig. 1 (i is narrow 

 above and (juite wide toward the edge. A wide, thick specimen is 



