﻿Geology 
  and 
  Mineralogy. 
  449 
  

  

  Sardeson. 
  Pp. 
  10, 
  4 
  maps, 
  12 
  text 
  figures. 
  This 
  folio 
  embraces 
  

   the 
  Herman, 
  Barrett, 
  Chokio 
  and 
  Morris 
  quadrangles 
  in 
  Minne- 
  

   sota. 
  

  

  Professional 
  Papers. 
  — 
  No. 
  115. 
  The 
  Copper 
  Deposits 
  of 
  Ray 
  

   and 
  Miami, 
  Arizona; 
  by 
  F. 
  L. 
  Eansome. 
  Pp. 
  188, 
  54 
  pis., 
  

   29 
  figs. 
  

  

  Nos. 
  116, 
  117. 
  The 
  Sunset-Midway 
  oil 
  field, 
  California. 
  No. 
  

   116. 
  Part 
  I. 
  Geology 
  and 
  oil 
  resources; 
  by 
  R. 
  W. 
  Pack. 
  Pp. 
  

   179, 
  45 
  pis., 
  15 
  figs. 
  No. 
  117. 
  Part 
  II. 
  Geochemical 
  relations 
  of 
  

   the 
  oil, 
  gas, 
  and 
  water 
  ; 
  by 
  G. 
  S. 
  Rogers. 
  Pp. 
  100, 
  2 
  pis,, 
  8 
  figs. 
  

  

  No. 
  118. 
  Some 
  American 
  Jurassic 
  Ammonites; 
  by 
  John 
  

   B. 
  Reeside, 
  Jr. 
  Pp. 
  38, 
  24 
  pis., 
  1 
  ^g. 
  

  

  No. 
  119. 
  Reptilian 
  faunas 
  of 
  the 
  Torrejon, 
  Puerco 
  and 
  under- 
  

   lying 
  Upper 
  Cretaceous 
  formations 
  of 
  San 
  Juan 
  Co., 
  New 
  

   Mexico; 
  by 
  Charles 
  W. 
  Gilmore. 
  Pp. 
  68, 
  26 
  pis., 
  33 
  figs. 
  

  

  No. 
  125-B. 
  Gradations 
  from 
  continental 
  to 
  marine 
  conditions 
  

   of 
  deposition 
  in 
  Central 
  Montana 
  during 
  the 
  Eagle 
  and 
  Judith 
  

   River 
  Epochs; 
  by 
  C. 
  F. 
  Bowen. 
  Pp. 
  11-21, 
  pi. 
  IV. 
  No. 
  125-C. 
  

   Pliocene 
  and 
  Pleistocene 
  fossils 
  from 
  Alaska; 
  by 
  W. 
  H. 
  Dall. 
  

   Pp. 
  23-37, 
  pis. 
  V, 
  VI. 
  

  

  Bulletins. 
  — 
  No. 
  666. 
  Our 
  Mineral 
  Supplies 
  ; 
  H. 
  D. 
  McCaskey 
  

   and 
  E. 
  F. 
  Burchard, 
  geologists 
  in 
  charge. 
  Pp. 
  266, 
  1 
  pi., 
  6 
  figs. 
  

  

  No. 
  692. 
  Mineral 
  Resources 
  of 
  Alaska 
  ; 
  report 
  on 
  progress 
  of 
  

   investigations 
  in 
  1917; 
  bv 
  G. 
  C. 
  Martin 
  and 
  others. 
  Pp. 
  420, 
  

   10 
  pis., 
  13 
  figs. 
  

  

  No. 
  694. 
  Bibliography 
  of 
  the 
  metals 
  of 
  the 
  platinum 
  group 
  : 
  

   Osmium, 
  platinum, 
  palladium, 
  iridium, 
  rhodium, 
  ruthenium, 
  

   1748-1917 
  ; 
  by 
  J. 
  L. 
  Howe 
  and 
  H. 
  C. 
  Holtz. 
  Pp. 
  555. 
  

  

  No. 
  695. 
  The 
  Data 
  of 
  Geochemistry 
  ; 
  by 
  F. 
  W. 
  Clarke. 
  Pp. 
  

   829. 
  This 
  is 
  the 
  fourth 
  edition 
  of 
  a 
  work 
  which 
  has 
  proved 
  of 
  

   great 
  value 
  to 
  geologists 
  in 
  all 
  civilized 
  countries. 
  The 
  first 
  

   edition 
  of 
  716 
  pages 
  was 
  published 
  by 
  the 
  Survey 
  in 
  1908 
  (see 
  

   vol. 
  25, 
  p. 
  458). 
  

  

  No. 
  696. 
  A 
  Catalogue 
  of 
  the 
  Mesozoic 
  and 
  Cenozoic 
  Plants 
  of 
  

   North 
  America; 
  by 
  F. 
  H. 
  Knowlton. 
  Pp. 
  815. 
  

  

  No. 
  698. 
  Bibliography 
  of 
  North 
  American 
  Geology 
  for 
  1918, 
  

   with 
  subject 
  index; 
  by 
  J. 
  M. 
  Nickles. 
  Pp. 
  145. 
  

  

  No. 
  699. 
  The 
  Porcupine 
  Gold 
  Placer 
  District, 
  Alaska; 
  by 
  

   H. 
  M. 
  Eakin. 
  Pp. 
  28, 
  8 
  pis. 
  

  

  No. 
  700. 
  The 
  analysis 
  of 
  Silicate 
  and 
  Carbonate 
  Rocks; 
  by 
  

   W. 
  F. 
  Hillebrand. 
  Pp. 
  283. 
  (fourth 
  edition.) 
  

  

  No. 
  709, 
  A, 
  B. 
  Triangulation 
  and 
  primary 
  traverse 
  in 
  Dela- 
  

   ware, 
  Maryland, 
  West 
  Virginia, 
  Florida; 
  by 
  R. 
  B. 
  Marshall, 
  

   chief 
  geographer. 
  

  

  No. 
  710. 
  Parts 
  C-F. 
  On 
  various 
  deposits 
  of 
  manganese 
  ores. 
  

  

  No. 
  711. 
  Parts 
  D-H. 
  On 
  oil, 
  gas, 
  coal, 
  and 
  peat 
  from 
  different 
  

   localities. 
  

  

  No. 
  712. 
  Parts 
  A-G. 
  The 
  Alaskan 
  Mining 
  Industries. 
  

  

  