S. GEOLOGICAL SURVF\ 
BULLETIN NO. 269 PI . 
.1. BED OF RUBY-BEARING GRAVEL AT CALER FORK, COWEE VALLEY, MACON 
COUNTY, N. C. 
n. RUBY MINE AT COWEE VALLEY, NORTH CAROLINA. 
Plant for washing gravel Is shown in foreground ; a, sluice box; b, sieve boxes; C, rocker. 
