﻿Geology 
  and 
  Mineralogy. 
  41 
  9 
  1 
  

  

  No. 
  639. 
  Mississippi, 
  1901-1915. 
  Pp. 
  80; 
  1 
  pi. 
  No. 
  643. 
  

   South 
  Dakota, 
  1896-1915. 
  Pp. 
  100 
  ; 
  1 
  pi. 
  No. 
  646. 
  North 
  

   Carolina, 
  1896-1914. 
  Pp.71; 
  1 
  pi. 
  

  

  Water 
  Supply 
  Papers. 
  — 
  Surface 
  Water 
  Supply 
  of 
  the 
  United 
  

   States, 
  1914. 
  N. 
  C. 
  Grove 
  k, 
  Chief 
  Hydraulic 
  Engineer. 
  No. 
  

   381. 
  Parti. 
  North 
  Atlantic 
  Slope 
  Drainage 
  Basin. 
  Pp. 
  195; 
  

   xxxvii; 
  2 
  pis. 
  No. 
  382. 
  Part 
  II. 
  South 
  Atlantic 
  and 
  Eastern 
  

   Gulf 
  of 
  Mexico 
  Basins. 
  Pp. 
  66, 
  xxx; 
  2 
  pis. 
  No. 
  393. 
  Part 
  

   X]I. 
  North 
  Pacific 
  Drainage 
  Basins, 
  B. 
  Snake 
  River 
  Basin. 
  Pp. 
  

   248; 
  2 
  pis. 
  

  

  No. 
  400. 
  Contributions 
  to 
  the 
  Hydrology 
  of 
  the 
  United 
  States^ 
  

   1916. 
  Chapters 
  B, 
  C, 
  D. 
  

  

  The 
  Thirty-seventh 
  Annual 
  Report 
  of 
  the 
  Director 
  for 
  the 
  

   Year 
  ending 
  June 
  30, 
  1916, 
  is 
  announced 
  as 
  having 
  been 
  pub- 
  

   lished 
  under 
  date 
  of 
  January 
  1, 
  1917; 
  it 
  has 
  not 
  as 
  yet 
  been 
  

   received 
  at 
  this 
  office. 
  

  

  4. 
  West 
  Virginia 
  Geological 
  Survey, 
  I. 
  C. 
  White, 
  State 
  

   Geologist. 
  Jefferson, 
  Berkeley, 
  and 
  Morgan 
  Counties; 
  by 
  G. 
  P. 
  

   Grimsley, 
  Assistant 
  Geologist. 
  Pp. 
  xxvi, 
  644; 
  3 
  maps 
  in 
  Atlas 
  

   (under 
  separate 
  cover), 
  37 
  pis., 
  20 
  figs. 
  — 
  The 
  area, 
  covered 
  by 
  

   this 
  detailed 
  report, 
  is 
  especially 
  noteworthy 
  because 
  it 
  contains 
  

   vast 
  deposits 
  of 
  the 
  purest 
  limestones 
  in 
  the 
  country 
  ; 
  also 
  

   immense 
  deposits 
  of 
  pure 
  dolomites 
  and 
  vast 
  quantities 
  of 
  glass- 
  

   sands; 
  also 
  many 
  other 
  valuable 
  and 
  interesting 
  mineral 
  deposits, 
  

   including 
  clays, 
  road 
  materials, 
  iron 
  ores, 
  etc. 
  The 
  price 
  of 
  the 
  

   volume, 
  including 
  case 
  of 
  maps 
  (delivery 
  charges 
  paid), 
  is 
  $2.50; 
  

   extra 
  copies 
  of 
  geologic 
  map, 
  $1.00 
  each, 
  and 
  of 
  the 
  topographic 
  

   map, 
  50 
  cents 
  each. 
  

  

  5. 
  The 
  Inorganic 
  Constituents 
  of 
  Marine 
  Invertebrates 
  / 
  by 
  

   Frank 
  W. 
  Clarke 
  and 
  Walter 
  C. 
  Wheeler. 
  Prof. 
  Paper 
  102, 
  

   U. 
  S. 
  Geol. 
  Survey, 
  1917, 
  56 
  pp. 
  — 
  This 
  memoir, 
  interesting 
  alike 
  

   to 
  zoologists, 
  paleontologists, 
  and 
  geologists, 
  presents 
  and 
  dis- 
  

   cusses 
  250 
  new 
  analyses, 
  along 
  with 
  many 
  old 
  ones, 
  of 
  calcareous 
  

   algae 
  and 
  all 
  of 
  the 
  chief 
  shell-bearing 
  marine 
  invertebrates. 
  It 
  

   is 
  shown 
  that 
  the 
  foraminifers, 
  alcyonarians, 
  echinoderms, 
  bryo- 
  

   zoans, 
  and 
  crustaceans 
  use 
  in 
  their 
  skeletal 
  structures 
  from 
  5 
  to 
  25 
  

   per 
  cent 
  of 
  magnesium 
  carbonate, 
  and 
  that 
  the 
  quantity 
  varies 
  

   with 
  the 
  temperature 
  of 
  the 
  water. 
  The 
  greatest 
  amount 
  is 
  

   found 
  in 
  the 
  warm 
  waters 
  and 
  in 
  association 
  with 
  calcite, 
  whereas 
  

   the 
  aragonitic 
  structures 
  are 
  essentially 
  non-magnesian. 
  c. 
  s. 
  

  

  6. 
  A 
  /Synopsis 
  of 
  American 
  Early 
  Tertiary 
  Cheilostome 
  

   Bryozoa 
  / 
  by 
  Ferdinand 
  Canu 
  and 
  Ray 
  S. 
  Bassler. 
  Bull. 
  96, 
  

   U. 
  S. 
  National 
  Museum, 
  1917, 
  87 
  pp., 
  6 
  pis. 
  — 
  In 
  this 
  very 
  import- 
  

   ant 
  synopsis 
  relating 
  to 
  the 
  classification 
  of 
  American 
  Cenozoic 
  

   Cheilostomata 
  are 
  also 
  described 
  50 
  new 
  genera 
  and 
  42 
  new 
  

   species. 
  For 
  four 
  years 
  the 
  authors 
  have 
  been 
  developing 
  these 
  

   bryozoans, 
  which 
  now 
  number 
  nearly 
  500 
  species 
  from 
  the 
  Eocene 
  

   and 
  Oligocene. 
  Eventually 
  all 
  will 
  be 
  described 
  in 
  an 
  extensive 
  

   monograph 
  now 
  in 
  preparation. 
  o. 
  s. 
  

  

  