INTRODUCTION.  13 
List  of  geologic  folios,  showing  mineral  resources  described-    Continued. 
No. 
Name  of  folio. 
State. 
Area 
in 
sq.m. 
Author. 
Mineral  products  described 
as    occurring    in    area    of 
folio. 
l'"i 
Rural  Valley 
Bradshaw      Moun- 
tains. 
Sundance 
Aladdin 
Clifton 
Rico 
Pa ... . 
22o 
986 
857 
894 
250 
236 
236 
969 
228 
227 
938 
938 
925 
906 
812 
219 
1,699 
1,713 
975 
Butts,  C . 
Coal,  oil,  gas,  fire  clay,  iron 
ore,  lime,  building  stone. 
Gold,    silver,    copper,    iron, 
building  stone,  onyx  mar- 
hie 
Gold,  tin,  silver,  lead,  con!, 
gypsum,  bentonite,  under- 
ground water. 
Underground    water,    coal, 
gypsum,  lime. 
Copper,     iron,    lead,    gold, 
kaolin. 
1?fi 
Ariz 
Jaggar,  T .  A . ,  j  r. ;  Pa- 
lache,  C. 
Darton,  N.  H 
Darton,N.H.;  O'Har- 
ra,  C.  C 
127 
128 
Wyo.  S.  Dak. 
Wyo.  S.Dak.- 
Mont. 
130 
Colo 
Cross,    W.;    Spencer, 
A.     C;     Ransome, 
F.  L. 
Cross,  W.;  Howe,  E.; 
Irving,  J.  D.;  Em- 
mons, W.  H. 
Taff,  J.  A 
Butts,  C. 
131 
13? 
Needle  Mountains.. . 
do 
Ind.  T 
Pa . . . 
ing  stone,  lime. 
Gold,  silver. 
)33 
Coal,  clay,  shale,  building 
s1  one, underground  water. 
Clay,  coal,  oil,  gas,  building 
stone. 
Cement,  iron  ore,  oil,  gas, 
gravel. 
Clay,  gravel,  underground 
water. 
Clay,  marl,  gravel,  under- 
ground water. 
Copper,  gold,  silver,  iron, 
clay ,  lime,  stone. 
Coal,  iron,  gold,  quicksilver 
copper. 
Stone,  lime,  cement,  clay, 
gravel,  underground  wa- 
ter. 
Coal,  gold,  copper,  gypsum, 
stone,  phosphate,  under- 
ground water. 
Coal,  gold,  copper,  gypsum, 
stone,  phosphate,  asphalt, 
underground  water. 
Marble,  talc,  kaolin,  soap- 
stone,  mica,  corundum, 
iron,  gold. 
134 
Beaver 
.do 
Woolsey,  L.  II 
Fisher,  C.  A 
Shattuck,G.B.;  Miller, 
B.  L. 
Miller,  B.  I, 
Diller,  J.  S 
13,r> 
Nepesta 
St.  Marys 
Cofo 
136 
Md-Va 
Del.-Md.-N.J. 
Cal 
137 
138 
Redding 
Snoqualmie 
Milwaukee 
Bald        Mountain- 
Dayton. 
Cloud     Peak  -  Fort 
McKinney. 
Nantahala 
139 
140 
Wash 
Wis.. 
Smith,  G.  0.;  Calkins, 
F.  C. 
Chamberlin,  T.  C;  Al- 
den,  W.  C. 
Darton,  N.  H.;  Salis- 
bury, R.  D. 
do 
Keith,  A 
141 
Wyo.   . 
142 
143 
....do 
N.  C.-Tenn... 
6.  Mineral  Resources. — From  18S3  to  1894,  inclusive,  an  octavo 
cloth-bound  volume  bearing  the  above  title  was  issued  annually,  except 
that  the  reports  for  the  years  1883-84  and  1889-90  were  included  by 
pahs  in  single  volumes.  The  first  of  this  series  was  Mineral  Resources 
of  the  United  States,  1882;  the  last,  Mineral  Resources  of  the  United 
States,  1893.  In  1894  this  form  of  publication  was  discontinued,  in 
accordance  with  an  act  of  Congress,  and  the  statistical  material  was 
included  in  certain  parts  of  the  sixteenth,  seventeenth,  eighteenth, 
nineteenth,  twentieth,  and  twenty-first  annual  reports.  The  separate 
publication  of  the  series  on  mineral  resources  was  resumed,  however, 
in  1901,  in  accordance  with  an  act  of  Congress,  and  six  volumes  of  the 
new  series,  Mineral  Resources  of  the  United  States  for  1900,  for  1901, 
for  1902,  for  1903,  for  1904,  and  for  1905,  have  been  issued. 
This  publication  contains  a  systematic  statement  of  the  production 
and  value  of  the  mineral  products  of  the  United  States,  a  summary  of 
new  mineral  resources  developed,  and  short  papers  on  economic  geol- 
ogy when  these  are  necessary  to  account  for  the  new  developments. 
