Quarterly Journal of Science, 
VEINS WITH THROWS 7 
OF ONE AND TWELVE FATHOMS. 
“MILLSTONE GRIT. 
bin 25 BEDS? 
PUES UOVEN 
P= SP LATE, 
BLACK BEDS 
y LIMESTONEC 7 1x7], 
MAIN CHERT 
OG DY ay ey) 
AIMESTONE 
MAIN CHERT 
We EAeNS ag 
LIMESTONE 
UNDERSET CHERT 
[\JUNDERSET LIMEX/\ 
10 FATHOMS. 
PSHE: 
UNDERSET CHERT 
NSCTAY [Ene RSET MELA 
gnaras) 
SELMER 
SCALE 
nC 20 x Fa 90 Fathoms 
Most productive portion of the vein (with or without rider) PE 
Productive in the presence of a rider SCG y0y79 
Uncertain portions eee 
Unproductive. 
Unexplored HURETRATOECVUHLEUTA AETV 
