INDEX. 
523 
Page. 
Hudson  shales  of  Lehigh  district,  Pennsyl- 
vania, cement  material  in 449 
Hyner  gas  pool,  Pennsylvania,  natural  gas 
in 392-395 
I. 
Idaho,  metalliferous  deposits  in,  work  on. .        23 
Illinois,  fluorspar  deposits  of  southern...  505-511 
metalliferous  deposits  in,  work  on 23 
zinc  and  lead  deposits  of 202-207 
Indian  Territory,  metalliferous  deposits  in, 
work  on 23 
Inmachuk  River,  Alaska,  gold  from,  char- 
acter of 78 
gold  placers  on 76-77 
Iola  oil  and  gas  district,  work  in 26 
Iron,  papers  on,  titles  of 238-239 
Iron  Hill  mine,  South  Dakota,  ore  deposits 
of 138-139 
Iron  Mountain  district,  California,  copper 
deposits  of 172-174 
Iron  Mountain  district,  Utah,  iron  ores  in. .      229 
Iron  ore,  analyses  of 227, 231, 232, 233 
deposits  of,  California 178 
Lake  Superior  region 215-220 
Utah 221-237 
studies  of 25 
Irving,  J.  D.,  paper  by,  on  ore  deposits  of 
northern  Black  Hills 123-140 
papers  by,  title  and  description  of 24 
professional  paper  in  preparation  by  . .        20 
J. 
Jaggar,  T.  A.,  geologic  folios  in  preparation 
by 20 
Jaggar,  T.  A.,  and  Palache,  Charles,  geologic 
folios  in  preparation  by 20 
Juneau  gold  belt,  Alaska,  coal  beds  in 41-42 
geology  of 30-32 
gold  veins  of 32-34 
miners    employed    in,    table    showing 
number  of 29 
mines  in,  description  of 34-40 
names,  location,  and  output  of 29-30 
water-power  problems  in 41-42 
K. 
Keating,  J.  B.,  acknowledgments  to 176 
Keith,  Arthur,  paper  by,  on  zinc  mining  in 
Tennessee 208-213 
paper  by,  title  and  description  of 21-22 
Keith,  Arthur,  and  Boutwell,  J.  M.,  profes 
sional  papers  in  preparation  by .        20 
Kellioka   coal,  occurrence  and   thickness 
Of 270-271 
Kemp,  J.  F.,  paper  by,  on  graphite  in  east- 
ern Adirondacks,  New  York. .  512-514 
work  of 27 
Kentucky,  coal  in 259-275 
cooperative  work  with,  on  Cumberland 
Gap  coal  field 25-26 
Kimball,  J.  P.,  cited  on  Cuban  iron  ore  de- 
posits        236 
Kittanning   coal.     See  Upper   Kittanning 
coal;  Lower  Kittanning  coal. 
Page. 
Kittatinny  limestone  of    Lehigh    district, 
analyses  of 451 
cement  material  in 451 
Klondike  coal,  occurrence  and  thickness 
of 262-263 
Kneisley  oil  field,  Pennsylvania,  petroleum 
in 410 
Knowlton,  F.  H.,  fossils  determined  by 245 
Knox,  C.  E.,  acknowledgments  to 90 
Kobuk.    See  Kowak. 
Kotzebue  placer-gold  field,  Alaska,  coal  in.        80 
description  of 74-75 
geology  of 75-76 
gold  in,  character  and  origin  of 78-80 
placers  in 76-78 
Kowak  region,  Alaska,  gold  placers  in 44-15 
Koyukuk  River  region,  Alaska,  placer  min- 
ing in 58 
Kiimmel,  H.  B.,  cited  on  Portland  cement 
industry  in  New  Jersey 448 
Kuskokwim  River,  Alaska,  gold  placer  min- 
ing near 48 
L. 
Lake  Superior  iron-ore  districts,  studies  in.        25, 
215-220 
Lambert  syncline,  Pennsylvania,  course  of. .  403 
Lancashire     coal     mines,     Pennsylvania, 
operations  at 298-299 
Laramie  formation  of  Bighorn  Basin,  occur- 
rence and  character  of 345-346 
Lead  and  zinc  deposits,  Illinois 202-207 
papers  on,  titles  of 214 
publications  on,  in  preparation 20 
Lead  City  area  of  ore  deposits,  South  Dakota, 
features  of 135 
Lehigh  cement  district,  cement  rocks  and 
cement  industry  in 451-456 
Leith,   C.   K.,  paper  by,  on    iron  ores  in 
Utah 229-237 
paper  by,  on  Lake  Superior  iron   re- 
gion     215-220 
work  of 25,217 
Lerch,  Fred,  acknowledgment  to 229 
Lignites,  analyses  of 280, 286 
fuel  value  of 287-288 
gas-producing  capacity  of 281 
deposits  of,  in  Missouri  Valley 276-288 
publications  on  coal,  peat,  and,  list  of.  363-364 
Limestone,  analyses  of,  from  Alabama 432, 
445-447 
analyses  of,  from  California 176 
from  Pennsylvania-New  Jersey  (Le- 
high district) 450, 451 
from  Utah 237 
from  Virginia 458, 459, 461 
deposits  of,  California 176-177 
West  Virginia 516-517 
Lindgren,  Waldernar,  geologic  folios  in  prep- 
aration by 20 
professional  papers  in  preparation  by. .        20 
work  of,  in  Colorado 22 
on  Kansas  gold-bearing  shales 18-19 
Lone  Mountain  mining  district,  Nevada, 
ore  deposits  of 114-115 
Lost  River,  Alaska,  tin  deposits  of 158-160 
