﻿JAN. 
  4, 
  1922 
  abstracts: 
  geology 
  19 
  

  

  other 
  characters 
  in 
  which 
  they 
  diverge 
  but 
  in 
  which 
  they 
  should 
  inter- 
  

   grade 
  if 
  they 
  represent 
  true 
  intermediates 
  in 
  a 
  direct 
  line 
  of 
  develop- 
  

   ment. 
  Most 
  of 
  the 
  characters, 
  as 
  well 
  as 
  those 
  mentioned 
  by 
  Smitt 
  

   and 
  others 
  enumerated 
  in 
  the 
  classifications 
  of 
  Argentina, 
  show 
  re- 
  

   semblances 
  merely, 
  rather 
  than 
  actual 
  indications 
  of 
  relationship. 
  

   And 
  those 
  resemblances 
  represent 
  some 
  of 
  the 
  Salmonoid 
  tendencies 
  

   of 
  characters 
  possessed 
  by 
  the 
  generalized 
  ancestral 
  form, 
  Argentina 
  

   being 
  a 
  highly 
  specialized 
  terminal 
  product 
  of 
  an 
  early 
  divergent. 
  

   The 
  fact 
  that 
  it 
  is 
  a 
  comparatively 
  deep 
  water 
  group, 
  of 
  apparently 
  

   wide 
  distribution, 
  possessing 
  an 
  intestinal 
  spiral 
  valve, 
  considered 
  

   together 
  with 
  its 
  general 
  structure, 
  would 
  support 
  this 
  view. 
  

  

  ABSTRACTS 
  

  

  Authors 
  of 
  scientific 
  papers 
  are 
  requested 
  to 
  see 
  that 
  abstracts, 
  preferably 
  prepared 
  

   and 
  signed 
  by 
  themselves, 
  are 
  forwarded 
  promptly 
  to 
  the 
  editors. 
  The 
  abstracts 
  should 
  

   conform 
  in 
  length 
  and 
  general 
  style 
  to 
  those 
  appearing 
  in 
  this 
  issue. 
  

  

  GEOLOGY. 
  — 
  The 
  New 
  Salem 
  lignite 
  field, 
  Morton 
  County, 
  North 
  Dakota. 
  

   Eugene 
  T. 
  Hancock. 
  U. 
  S. 
  Geo! 
  Surv. 
  Bull. 
  726-A. 
  Pp. 
  39. 
  1921. 
  

  

  The 
  Nevv 
  Salem 
  field 
  is 
  part 
  of 
  the 
  great 
  lignite 
  region 
  of 
  western 
  North 
  

   Dakota 
  and 
  adjacent 
  regions. 
  The 
  history, 
  commercial 
  geography, 
  and 
  

   surface 
  features 
  of 
  the 
  area 
  are 
  summarized 
  in 
  two 
  pages. 
  Six 
  pages 
  are 
  

   given 
  to 
  the 
  discussion 
  of 
  the 
  geologic 
  section 
  which 
  includes 
  the 
  I,ance 
  and 
  

   Fort 
  Union 
  formations. 
  Within 
  the 
  Lance 
  is 
  the 
  Cannonball 
  marine 
  member 
  

   which 
  has 
  been 
  the 
  subject 
  of 
  much 
  recent 
  discussion 
  and 
  is 
  named 
  from 
  

   the 
  Cannonball 
  River 
  traversing 
  this 
  field. 
  One 
  bed 
  of 
  lignite 
  was 
  found 
  

   in 
  the 
  Lance 
  below 
  the 
  Cannonball 
  member, 
  but 
  the 
  valuable 
  beds 
  are 
  con- 
  

   fined 
  to 
  the 
  upper 
  200 
  to 
  300 
  feet 
  of 
  the 
  Fort 
  Union. 
  

  

  The 
  beds 
  in 
  most 
  of 
  this 
  field 
  have 
  a 
  very 
  gentle 
  dip 
  (5 
  to 
  10 
  feet 
  to 
  the 
  

   mile) 
  toward 
  the 
  northwest, 
  with 
  minor 
  folds; 
  in 
  the 
  northwest 
  part 
  of 
  the 
  

   field 
  they 
  form 
  a 
  gentle 
  syncline. 
  About 
  three 
  pages 
  are 
  given 
  to 
  physical 
  

   and 
  chemical 
  data 
  and 
  graphic 
  sections 
  of 
  the 
  coal 
  in 
  considerable 
  detail. 
  

   The 
  heating 
  value 
  ranges 
  about 
  6,000 
  to 
  7,000 
  calories 
  for 
  coal 
  as 
  mined. 
  

   Fourteen 
  pages 
  are 
  devoted 
  to 
  a 
  description 
  by 
  townships 
  of 
  the 
  occurrence 
  

   of 
  the 
  coal 
  in 
  the 
  seventeen 
  townships 
  examined. 
  

  

  Marcus 
  J. 
  Goldman. 
  

  

  GEOLOGY. 
  — 
  Ground 
  water 
  in 
  the 
  Southington-Granhy 
  Area, 
  Connecticut. 
  

   Harold 
  S. 
  Palmer. 
  U. 
  S. 
  Geol. 
  Surv. 
  Water-Supply 
  Paper 
  466. 
  

   Pp. 
  213. 
  1921. 
  

   This 
  paper 
  is 
  the 
  fourth 
  to 
  appear 
  of 
  a 
  series 
  of 
  detailed 
  reports 
  on 
  the 
  

   ground-water 
  resources 
  of 
  selected 
  areas 
  in 
  Connecticut. 
  The 
  first 
  part 
  

   is 
  of 
  a 
  general 
  character 
  and 
  treats 
  of 
  the 
  water-bearing 
  formations, 
  occur- 
  

   rence 
  and 
  recovery 
  of 
  ground 
  water, 
  and 
  its 
  quality. 
  This 
  is 
  followed 
  by 
  

   descriptions 
  of 
  the 
  eighteen 
  towns 
  included 
  in 
  the 
  area, 
  which 
  is 
  partly 
  in 
  

   the 
  Central 
  Lowland 
  and 
  partly 
  in 
  the 
  Western 
  Highland 
  of 
  Connecticut. 
  

  

  