49 
Broili  (Ferdinand)— Continued. 
3.  Ueber  Diacranodus  texensis  Cope  (Didymodus?  compressus  Cope). 
N.  Jahrb.  f.  Min.,  Beilage-Band  19,  pp.  467-484,  2  pis.,  1904. 
4.  Pelycosaurierreste  von  Texas. 
Deutsch.  geol.  Ges.,  Zeitschr.,  Bd.  56,  pp.  268-274,  1  pi.  and  1  fig.,  1904. 
Describes  remains  of  Pelycosaurians  from  the  Permian  of  Texas. 
Brooks  (Alfred  Hulse). 
1.  A  new  occurrence  of  cassiterite  in  Alaska. 
Science,  new  ser.,  vol.  13,  p.  593,  1901. 
Gives  a  brief  description  of  occurrence  in  stream  gravels. 
2.  An  occurrence  of  stream  tin  in  the  York  region,  Alaska. 
U.  S.  Geol.  Surv.,  Min.  Res.  of  U.  S.  for  1900,  pp.  267-271,  1901. 
Describes  the  general  geology  of  the  region  and  the  occurrence  of  the  stream  tin. 
3.  The  coal  resources  of  Alaska. 
U.  S.  Geol.  Surv.,  22d  Ann.  Kept.,  pt.  3,  pp.  515-571,  1  pi.,  1902. 
Gives  a  general  account  of  the  Cretaceous  and  Tertiary  geology  of  Alaska  and  discusses  the 
character  and  occurrence  of  coals  in  these  formations. 
4.  Preliminary  report  on  the  Ketchikan  mining  district,  Alaska,  with  an  introduc- 
tory sketch  of  the  geology  of  southeastern  Alaska. 
U.  S.  Geol.  Snrv.,  Professional  Paper  no.  1,  120  pp.,  2  pis.,  6  figs.,  1902. 
Describes  the  physiographic  and  stratigraphic  features  of  the  region  and  the  occurrence  of 
gold  and  copper. 
5.  Geological  reconnaissances  in  southeastern  Alaska. 
Geol.  Soc.  Am.,  Bull.,  vol.  13,  pp.  253-266,  1  tig.,  1902. 
Discusses  the  general  stratigraphic  relations,  geologic  history,  and  correlation  of  the  beds  of 
the  region. 
6.  A  reconnaissance  in  the  Mt.  McKinley  region,  Alaska. 
Abstract:  Science,  new  ser.,  vol.  16,  pp.  985-986,  1902. 
7.  Placer  gold  mining  in  Alaska  in  1902. 
U.  S.  Geol.  Surv.,  Bull.  no.  213,  pp.  41-48,  1903. 
Describes  the  occurrence  of  placer  gold  in  different  parts  of  Alaska. 
8.  Stream  tin  in  Alaska. 
U.  S.  Geol.  Surv.,  Bull.  no.  213,  pp.  92-93,  1903. 
9.  Placer  mining  in  Alaska  in  1903. 
U.  S.  Geol.  Surv.,  Bull.  no.  225,  pp.  43-59,  1904. 
Describes  occurrence  of  gold  and  the  mining  developments. 
10.  The  geography  of  Alaska,  with  an  outline  of  the  geomorphology. 
Intern.  Geog.  Cong.,  Eighth,  Rept.,  pp.  204-230,  1  map,  1905. 
Describes  the  geography,  physiographic  features,  and  the  geologic  history. 
11.  Report  on  progress  of  investigations  of  mineral  resources  of  Alaska  in  1904. 
Administrative  report. 
U.  S.  Geol.  Surv.,  Bull.  no.  259,  pp.  13-17,  1  pi.,  1905. 
Reviews  the  Alaskan  work  of  the  U.  S.  Geological  Survey  during  1904. 
12.  Placer  mining  in  Alaska  in  1904. 
U.  S.  Geol.  Surv.,  Bull.  no.  259,  pp.  18-31,  1905. 
13.  The  investigation  of  Alaska's  mineral  wealth. 
Am.  Inst.  Mg.  Engrs.,  Trans.,  vol.  35,  pp.  376-396,  1905. 
14.  The  outlook  for  coal  mining  in  Alaska. 
Am.  Inst.  Mg.  Engrs.,  Bi-mo.  Bull.,  no.  4,  pp.  683-702,  1  fig.,  1905. 
Brooks  (Alfred  Hulse)  and  Collier  (Arthur  J.). 
1.  Glacial  phenomena  of  the  Seward  Peninsula  [Alaska]. 
Abstract:  Science,  new  ser.,  vol.  13,  pp.  188-189,  1901.     Abstract  of  paper  read  he  fort'  the  Geo- 
logical Society  of  Washington. 
Bull.  301—06 4 
