EXPLANATION OF I'LATf: VTI. 



Mortar of oblong shape and with deep circular pit. Said to have 

 been found in 1862 in auriferous gravel beneath 14 (or 140) feet of 

 basalt and 200 feet in from the surface of the slope near the Boston 

 Tunnel CompanA^'s mine, Table ^Mountain, Tuolumne County, Cal. 

 Circumference, 25 inches. Material, hornblende andesite of somewhat 

 unusual type. Shape only partially artiticial and not peculiar to anj^ 

 region. No. 6, Voy collection. 

 436 



