86  BIBLIOGRAPHY    OF   NORTH    AMERICAN    GEOLOGY 
Darton  (Nelson  Horatio) — Continued. 
5.  Preliminary  list  of  deep  borings  in  the  United  States.     Part  I.  Alabama-Mon- 
tana. 
U.  S.  Geol.  Surv.,  Water-Supply  and  Irrigation  Paper  no.  67,  60  pp.,  1902. 
6.  Preliminary   list   of   deep   borings   in   the   United    States.      Part   II.  Nebraska- 
Wyoming. 
U.  S.  Geol.  Surv.,  Water-Supply  and  Irrigation  Paper  no.  61,  67  pp.,  1902. 
7.  Norfolk  folio,  Virginia-North  Carolina. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  80,  1902. 
Describes  the  geographic  and  topographic  features,  the  general  geologic  relations,  and  the 
character  and  occurrence  of  Cretaceous,  Tertiary  and  Quaternary  strata,  and  discusses  the 
soils  and  underground  waters. 
8.  Oelrichs  folio,  South  Dakota-Nebraska. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  85,  1902. 
Describes  geographic  and  topographic  features,  the  general  geologic  relations  and  history,  the 
characters  and  occurrence  of  Carboniferous,  Juratrias,  Cretaceous,  Tertiary  and  Quaternary 
strata,  and  the  economic  resources. 
9.  Preliminary  report  on  the  geology  and  water  resources  of  Nebraska  west  of  the 
one  hundred  and  third  meridian. 
U.  S.  Geol.  Surv.,  Professional  Paper  no.  17,  69  pp.,  43  pis.,  23  figs.,  1903. 
This  is  a  reprint  of  the  paper  with  the  above  title  in  the  Nineteenth  Annual  Report  of  the 
Director  of  the  U.  S.  Geological  Survey,  Part  IV,  1899,  with  a  few  corrections  in  some  of  the 
maps  and  a  few  minor  changes  in  statements  regarding  geology. 
10.  Camp  Clarke  folio,  Nebraska. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  87,  1903. 
Describes  geography,  topographic  features  and  drainage,  general  geologic  relations,  and 
character  and  occurrence  of  formations  of  Tertiary  age;  gives  a  brief  geologic  history  of 
the  central  Great  Plains  region,  and  discusses  the  supplies  of  underground  waters  and  irri- 
gation. 
11.  Seotts  Bluff  folio,  Nebraska. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  88,  1903. 
Describes  geography,  topography  and  drainage,  general  geologic  relations,  and  character  and 
occurrence  of  Tertiary  and  Quaternary  formations;  gives  a  brief  geologic  history  of  the 
central  Great  Plains  region,  and  discusses  underground  waters  and  irrigation. 
12.  Some  relations  of  Tertiary  formations  of  the  northern  Great  Plains. 
Abstract:  Science,  new  ser.,  vol.  17,  p.  218,  1903. 
13.  Comparison  of  stratigraphy  of  the  Big  Horn  Mountains,  Black  Hills,  and  Rocky 
Mountain  front  range. 
Abstract:  Science,  new  ser.,  vol.  17,  p.  292,  1903. 
14.  Newcastle  folio,  Wyoming-South  Dakota. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  107,  1904. 
Describes  physiographic  features,  the  geologic  history  and  structure,  the  occurrence,  character, 
and  stratigraphic  relations  of  Carboniferous,  Triassic  (?),  Jurassic,  and  Cretaceous  strata 
and  Quaternary  deposits,  and  the  economic  resources,  artesian  water,  coal,  petroleum,  gyp- 
sum, etc. 
15.  Gypsum  deposits  in  South  Dakota. 
U.  S.  Geol.  Surv.,  Bull.  no.  223,  pp.  76-78,  1  pi.,  2  figs.,  1904. 
Describes  character,  occurrence,  and  economic  development  of  gypsum  deposits  in  the  Black 
Hills  region. 
16.  Comparison   of   the  stratigraphy  of  the  Black   Hills,  Bighorn  Mountains,  and 
Rocky  Mountain  front  range. 
Geol.  Soc.  Am.,  Bull.,  vol.  15,  pp.  379-448,  14  pis.,  1904. 
Describes  in  detail  the  occurrence,  character,  etc.,  of  geologic  formations  of  Cambrian,  Ordovi- 
cian,  Carboniferous,  Triassic,  Jurassic,  and  Cretaceous  age,  and  discusses  their  relations 
and  correlations. 
17.  New  York  City  folio,  New  York-New  Jersey. 
See  Merrill  (F.  J.  H.)  and  others,  1. 
