weed]  COPPER    DEPOSITS    IN    GEORGIA.  181 
upon  an  old  gold  property  in  Lincoln  County.  This  property,  formerly 
known  as  the  Magruder  gold  mine  and  now  designated  as  the  Semi- 
nole copper  mine,  has  already  yielded  high-grade  mattes  carrying 
gold  and  silver  values,  and  the  development  work  is  sufficient  to  givTe 
assurance  of  the  permanence  of  the  ore.  For  this  reason  a  careful  petro- 
graphic  examination  of  the  rocks  was  ordered,  because  the  writer 
desired  to  follow  it  up  by  a  careful  study  of  the  ore  deposit  itself. 
Prof.  Thomas  L.  Watson  was  therefore  sent  to  the  property  and  has 
furnished  the  notes  contained  in  the  following  paper. 
