﻿Geologij. 
  451 
  

  

  the 
  Atlantic 
  coast. 
  During 
  the 
  year 
  Professor 
  O. 
  C. 
  Marsh 
  died, 
  

   and 
  large 
  collections 
  of 
  vertebrate 
  fossils 
  made 
  by 
  him 
  were 
  

   packed 
  and 
  removed 
  to 
  Washington. 
  

  

  The 
  Division 
  of 
  Chemistry 
  completed 
  295 
  analyses 
  during 
  the 
  

   year. 
  

  

  The 
  Division 
  of 
  Hydrography 
  made 
  detailed 
  examinations 
  in 
  

   Nicaragua, 
  along 
  the 
  Gila 
  River; 
  in 
  the 
  Great 
  Plains; 
  in 
  the 
  

   Black 
  Hills 
  region 
  ; 
  in 
  Pennsylvania 
  and 
  Maryland 
  ; 
  in 
  south- 
  

   western 
  Colorado. 
  Investigations 
  pertaining 
  to 
  the 
  work 
  of 
  this 
  

   Division 
  were 
  carried 
  on 
  in 
  nearly 
  every 
  state 
  of 
  the 
  Union. 
  

  

  The 
  Division 
  of 
  Mineral 
  Resources 
  shows 
  as 
  active 
  work 
  as 
  

   ever, 
  and 
  reports 
  great 
  increase 
  in 
  the 
  product 
  of 
  the 
  country 
  

   during 
  the 
  year. 
  The 
  total 
  increase 
  of 
  mineral 
  products, 
  from 
  

   1S97 
  to 
  189S, 
  was 
  nearly 
  sixty-seven 
  millions, 
  and 
  reached 
  the 
  

   enormous 
  figures 
  of 
  $697,273,907 
  in 
  1898. 
  This 
  total 
  is 
  the 
  largest 
  

   ever 
  recorded 
  for 
  the 
  United 
  States, 
  exceeding 
  by 
  over 
  forty-nine 
  

   millions 
  the 
  product 
  for 
  1892. 
  

  

  A 
  concise 
  summary 
  of 
  the 
  development 
  of 
  the 
  Topographic 
  

   Division 
  is 
  given 
  in 
  the 
  present 
  report. 
  The 
  topography 
  has 
  

   been 
  carried 
  into 
  all 
  the 
  states 
  and 
  territories, 
  and 
  about 
  27 
  per 
  

   cent 
  of 
  the 
  entire 
  area 
  exclusive 
  of 
  Alaska 
  has 
  been 
  surveyed. 
  

   The 
  total 
  area 
  surveyed 
  is 
  about 
  800,000 
  square 
  miles. 
  The 
  States 
  

   of 
  Connecticut, 
  Delaware, 
  Massachusetts, 
  New 
  Jersey, 
  and 
  Rhode 
  

   Island, 
  the 
  District 
  of 
  Columbia 
  and 
  Indian 
  Territory 
  have 
  been 
  

   completely 
  mapped. 
  A 
  detailed 
  report 
  is 
  given 
  of 
  the 
  amount 
  

   already 
  surveyed 
  in 
  each 
  district, 
  and 
  the 
  nature 
  of 
  the 
  surveys. 
  

  

  In 
  the 
  Forestry 
  branch 
  of 
  the 
  Survey, 
  the 
  following 
  regions 
  

   were 
  investigated: 
  The 
  Flathead 
  Reserve, 
  Montana; 
  the 
  Idaho 
  

   portion 
  of 
  the 
  Bitterroot 
  Reserve 
  ; 
  the 
  Mount 
  Rainier 
  Reserve 
  of 
  

   Washington; 
  the 
  Olympic 
  Reserve 
  of 
  Washington; 
  and 
  Pikes 
  

   Peak, 
  Plum 
  Creek, 
  and 
  South 
  Platte 
  reserves 
  of 
  Colorado. 
  

  

  In 
  the 
  publication 
  branch 
  of 
  the 
  Survey, 
  the 
  year's 
  work 
  in 
  

   photography 
  reached 
  a 
  total 
  of 
  nearly 
  6,000 
  negatives, 
  18,000 
  

   prints, 
  and 
  over 
  5,000 
  slides. 
  The 
  work 
  of 
  the 
  editorial 
  division 
  

   completed 
  the 
  editing 
  of 
  16,323 
  pages 
  of 
  manuscript, 
  and 
  11,316 
  

   printed 
  pages. 
  There 
  were 
  completed 
  and 
  issued 
  also 
  8 
  folios, 
  

   Nos. 
  44-51, 
  inclusive, 
  and 
  during 
  the 
  year 
  80 
  new 
  map 
  sheets 
  

   were 
  received, 
  which, 
  together 
  with 
  those 
  on 
  hand 
  at 
  the 
  begin- 
  

   ning 
  of 
  the 
  year, 
  make 
  a 
  total 
  of 
  164 
  sheets. 
  During 
  the 
  year 
  

   104,665 
  volumes, 
  29,597 
  geologic 
  folios, 
  and 
  168,641 
  topographic 
  

   maps 
  were 
  sent 
  out, 
  including 
  those 
  distributed 
  under 
  special 
  

   Congressional 
  enactments. 
  

  

  The 
  library 
  of 
  the 
  Survey 
  has 
  reached 
  a 
  total 
  of 
  144,370 
  entries, 
  

   including 
  books, 
  pamphlets, 
  and 
  maps. 
  

  

  This 
  concise 
  summary, 
  gathered 
  from 
  the 
  Director's 
  report, 
  is 
  

   sufficient 
  to 
  indicate 
  the 
  very 
  large 
  dimensions 
  of 
  the 
  work 
  car- 
  

   ried 
  on 
  by 
  this 
  important 
  Government 
  Bureau. 
  w. 
  

  

  3. 
  The 
  Crystal 
  Falls 
  Iron-Bearing 
  district 
  of 
  Michigan 
  ; 
  by 
  

   J. 
  Morgan 
  Clements 
  and 
  H. 
  L. 
  Smyth, 
  with 
  a 
  chapter 
  on 
  the- 
  

   Sturgeon 
  River 
  tongue, 
  by 
  W. 
  S. 
  Bayley, 
  and 
  an 
  Introduction, 
  

  

  