640 LEWIS G. WESTGAWE 
or quite parallel to the foliation, giving the rock a bedded 
appearance (Fig. 2. Map,1). Several quarries have been opened, 
and the attempt has been made to market the rock as a building 
stone. It is handsome when first quarried, but stains quickly, 
and so is of use only for foundations, etc. 
Fic. 2. Bedded Granite-Gneiss, Maromas Quarry. 
I. THE GRANITE-GNEISS IS ERUPTIVE. 
1. General stratigraphical features—A rounded or elliptical 
form, like that taken by this granite-gneiss, is common in the 
case of eruptive granites. The narrow belt that runs into the 
schists from its northern end is decidedly subordinate to the 
larger mass of which it is an offshoot. Thenorthwest direction 
of the longer axis of the granite-gneiss area is doubtless deter- 
mined by the strike of the enciosing schists. The irregularity 
of the boundary on the west side of the granite-gneiss indicates 
