FOR    THE    YEARS    1901-1905,   INCLUSIVE.  331 
Todd  (James  E. ) — Continued. 
2.  Some  problems  of  the  Dakota  artesian  system. 
Abstract:  Science,  new  ser.,  vol.  14.  p.  794,  190L;  Sci.  Am.  Suppl.,  vol.  52,  i>.  21504,  1901. 
3.  Moraines  and  maximum  diurnal  temperature. 
Abstracts:  Science,  new  ser.,  vol.  14,  pp.  794-795,  1901;  Sci.  Am.  Suppl.,  vol.  52,  ]>.  21501,  1901. 
Describes  certain  glacial  phenomena. 
4.  Hydrographic  history  of  South  Dakota. 
Geol.  Soc.  Am., "Bull.,  vol.  13,  pp.  27-40,  1  pi.  (map),  3  figs.,  1902. 
Discusses  the  earth  movements  that  have  affected  the  drainage  features  of  the  State. 
5.  Mineral  building  material,  fuels  and  waters  of  South  Dakota,  with  production  for 
1900. 
S.  Dak.  Geol.  Surv.,  Bull.  no.  3,  pp.  81-130,  10  pis.,  1902;  Stone,  vol.  25,  pp.  413-418,  521-524,  1903. 
Describes  the  character  and  distribution  of  the  building  stones,  cements,  clays,  fuels,  and 
mineral  waters  in  the  State. 
6.  Concretions  and  their  geological  effects. 
Geol.  Soc.  Am.,  Bull.,  vol.  14,  pp.  353-368,  5  pis.,  1903. 
Discusses  character,  occurrence,  and  modes  of  growth  of  concretions  and  their  influence  in 
producing  topographic  forms. 
7.  Building  stones  of  South  Dakota. 
Stone,  vol.  26,  pp.  20-27,  illus.,  1903. 
Describes  the  character  and  geologic  occurrence  of  building  stones. 
8.  A  newly  discovered  rock,  at  Sioux  Falls,  South  Dakota. 
Stone,  vol.  27,  pp.  46-48,  1903. 
Describes  the  occurrence  and  character  of  an  igneous  rock  discovered  in  this  vicinity. 
9.  Olivet  folio,  South  Dakota. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  96,  1903. 
Describes  geography  and  topography,  general  geology,  character,  and  occurrence  of  Algon- 
kian,  Cretaceous,  and  Quaternary  deposits,  geologic  history,  economic  and  water  resources . 
10.  Parker  folio,  South  Dakota. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  97,  1903. 
Describes  geography,  general  geology,  and  character  and  occurrence  of  Algonkian  and  Cre- 
taceous strata  and  Quaternary  deposits,  the.  geologic  history  and  economic  resources, 
including  underground  waters. 
11.  Mitchell  folio,  South  Dakota. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  99,  1903. 
Describes  geography,  general  geology,  the  character  and  occurrence  of  deposits  belonging  to 
the  Algonkian,  Cretaceous,  and  Quaternary  systems,  the  geologic  history  and  economic 
resources,  more  particularly  the  underground  waters. 
12.  The  newly  discovered  rock  at  Sioux  Falls.  South  Dakota. 
Am.  Geol.,  vol.  33,  pp.  35-39,  1904. 
Describes  occurrence  and  characters  of  a  diabasic  rock  discovered  at  Sioux  Falls. 
13.  Benton  formation  in  eastern  South  Dakota, 
Geol.  Soc.  Am.,  Bull.,  vol.  15,  pp.  569-575,  1  fig.,  1904. 
Describes  the  character  and  occurrence  of  the  Benton  formation  and  its  subdivisions  in  South 
Dakota,  and  corrects  the  former  erroneous  interpretation  of  the  Greenhorn  chalky  lime- 
stone. 
14.  Geology  of  South  Dakota. 
Black  Hills,  South  Dakota.  Papers  read  before  the  Black  Hills  Mining  Men's  Assoc,  pp.  128- 
135,  1904.  Am.  Mg.  Cong.,  6th  Ann.  Sess.,  Rept.  of  Proc,  pp.  51-57,  1905.  Abstract:  Mg. 
Rep.,  vol.  50,  pp.  615-616,  1904. 
Gives  a  general  account  of  the  geology  of  the  State  of  South  Dakota. 
15.  Huron  folio,  South  Dakota. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  113,  1904. 
Describes  the  topography,  drainage,  and  general  geology,  the  character,  occurrence,  and 
relations  of  Cretaceous  strata  and  Quaternary  deposits  and  the  geologic  history,  and  dis- 
cusses the  underground  water  resources  of  the  area. 
