GOLD  AND  SILVER. 
In  addition  to  the  papers  here  included,  which  represent  the  results 
of  recent  work  by  the  Survey  in  important  precious-metal  mining 
districts,  other  reports  bearing  incidentally  on  the  subject  of  gold  and' 
silver  will  be  found  under  the  head  of  "  Copper,"  on  pages  211  to  248, 
and  "  Lead  and  zinc,"  on  pages  251  to  303. 
THE  PRODUCTION  OF  GOLD  IN  THE  UNITED  STATES  IN  1904. 
By  Waldemar  Lindgren. 
INTRODUCTION. 
Although  detailed  statistics  for  the  production  of  gold  during  the 
last  year  are  not  yet  available,  it  may  be  worth  while  to  ascertain 
approximately,  with  such  data  as  are  at  hand,  the  distribution  of  the 
production  among  different  classes  of  ore  deposits.  A  preliminary 
estimate,  by  the  Director  of  the  Mint,  of  the  production  of  each  State 
and  Teritory  has  been  published  by  the  technical  press  in  its  first 
issues  of  1905.  This  estimate,  together  with  information  obtained 
by  the  mining  geologists  of  the  Geological  Survey  and  reports  in  the 
mining  papers,  forms  the  basis  of  this  review. 
Production  of  gold  and  silver  in  the  United  States. 
[As  estimated  by  the  Director  of  the  Mint.] 
State  or  Territory. 
Alabama  _ 
Alaska  .  .  . 
Arizona  . 
California 
Colorado  . 
Georgia  ._ 
Idaho  
32 
Gold. 
1903. 
$4, 400 
8,614,700 
4, 357, 600 
16.104,500 
22,540,100 
62, 000 
1,570,400 
WU. 
Silver 
$29, 000 
9, 000, 000 
4, 250, 000 
19, 000, 000 
26, 000, 000 
99, 000 
1,960,000 
1903. 
Fine  ouno 
143, 600 
3,387,100 
931,500 
12, 990, 200 
400 
6,507,400  I 
1904. 
Fine  ounces. 
200 
184.200 
3.  400.000 
1 ,  380, 000 
12,500,000 
1.200 
7,000,000 
