FOR    THE    YEARS    1901-1905,   INCLUSIVE.  307 
Simonds  (Frederic  William) — Continued. 
4.  The  geography  of  Texas,  physical  and  political. 
Boston,  Ginn  &  Company,  1905.    237  pp.,  133  figs. 
Includes  a  chapter  on  the  geology  of  Texas. 
Simpson  (Howard  E. ). 
1.  The  accretion  of  flood  plains  by  means  of  sand  bars. 
Iowa  Acad.  Sci.,  Proc.  for  1902,  vol.  10,  pp.  54-56,  1903. 
Sinclair  (William  J.). 
1.  The  discovery  of  a  new  fossil  tapir  in  Oregon. 
Jour.  Geol.,  vol.  9,  pp.  702-707,  1  fig..  1901. 
Describes  Protapirus  robustus  n.  sp.  from  the  John  Day  beds. 
2.  A  preliminary  account  of  the  exploration  of  the  Potter  Creek  cave,  Shasta  County, 
California. 
Science,  new  ser.,  vol.  17,  pp.  708-712.  1903. 
Describes  the  situation  of  the  cave,  the  deposits  in  it,  and  the  occurrence  of  vertebrate  remains, 
with  a  list  of  the  forms  identified. 
3.  Mylagaulodon,  a  new  rodent  from  the  upper  John  Day  of  Oregon. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  15,  pp.  143-144,  1  fig.,  1903. 
Describes  the  characters  and  relations  of  a  new  genus  and  species. 
4.  A  new  tortoise  from  the  auriferous  gravels  of  California. 
Cal.  Univ.,  Dept.  Geol.,  Bull.,  vol.  3,  pp.  243-248,  2  figs.,  1903. 
5.  The  exploration  of  the  Potter  Creek  cave  [California]. 
Cal.  Univ.  Publ.,  Am.  Arch.  &  Eth.,  vol.  2,  pp.  1-27,  14  pis.,  1904. 
Describes  the  general  geology  and  physiography  of  the  region,  the  stratigraphy  of  the  cave 
deposits,  the  occurrence  of  the  remains  of  Quaternary  vertebrates,  with  a  list  of  identified 
forms,  and  their  relations  to  other  faunas. 
6.  New  or  imperfectly  known  rodents  and  ungulates  from  the  John  Day  series. 
Cal.  Univ.,  Dept.  Geol.,  Bull.,  vol.4,  pp.  125-143,  5  pis.,  1905. 
7.  New  Mammalia  from  the  Quaternary  caves  of  California. 
Cal.  Univ.,  Dept.  Geol.,  Bull.,  vol.  4,  pp.  145-161,  4  pis.,  2  figs..  1905. 
Sinclair  (William  J.)  and  Furlong  (E.  L. ). 
1.  Euceratherium,  a  new  ungulate  from  the  Quaternary  caves  of  California. 
Cal.  Univ.,  Dept.  Geol.,  Bull.,  vol.  3,  pp.  411-418,  2  pis.,  1  fig.,  1904. 
Sinclair  (William  J.),  Merriam  (John  C. )  and. 
1.  The  correlation  of  the  John  Day  and  the  Mascall. 
See  Merriam  (J.  C.)  and  Sinclair  (W.  J.),  1. 
Skeat  (Ethel  G.). 
1.  The  Jurassic  rocks  of  East  Greenland. 
Geol.  Assoc,  Proc,  vol.  18,  pp.  336-350,  1  pi.,  1904. 
Gives  an  historical  review  of  geological  exploration  in  East  Greenland,  describes  the  general 
geologic  structure  and  the  occurrence  of  Jurassic  strata  and  their  fossil  contents,  and  dis- 
cusses the  distribution  of  land  and  sea  during  Jurassic  time. 
Skinner  (W.  W.). 
1.  The  underground  waters  of  Arizona — their  character  and  uses. 
Ariz.  Univ.  Agric  Exp.  Sta.,  Bull.  no.  46,  pp.  273-296,  1  pi.,  1903. 
Slichter  (Charles  S.). 
1.  The  motions  of  underground  waters. 
U.  S.  Geol.  Surv.,  Water-Supply  and  Irrigation  Paper  no.  67,  106  pp.,  50  figs.,  8pls.,  1902. 
2.  Field  measurements  of  the  rate  of  movement  of  underground  waters. 
U.  S.  Geol,  Surv.,  Water-Supply  and  Irrigation  Paper  no.  140,  122  pp.,  15  pis.,  67  figs.,  1905. 
Sloan  (Earl). 
1.  The  mineral  resources  of  South  Carolina. 
Am.  Mg.  Cong.,  7th  Ann.  Sess.,  Rept.  of  Proc,  pp.  129-160,  1905. 
