124  BIBLIOGRAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Fisher  (Cassius  A.) — Continued. 
2.  Directory  of  the  limestone  quarries  of  Nebraska. 
Nebr.  State  Board  of  Agric,  Ann.  Kept,  for  1901,  pp.  248-247,  1902. 
3.  Discovery  of  the  Laramie  in  Nebraska. 
Am.  Geol.,  vol.  30,  pp.  315-316,  1  pi.,  1902. 
Describes  occurrence  and  relations  of  the  Laramie  in  southeastern  Nebraska. 
4.  Coal  fields  of  the  White  Mountain  region,  New  Mexico. 
I'.  8.  Geol.  Surv.,  Bull.  no.  225,  pp.  293-294,  1904. 
Describes  the  location  of  the  field  and  the  occurrence  and  character  of  the  coals. 
5.  Coal  of  the  Bighorn  basin,  in  northwest  Wyoming. 
U.  S.  Geol.  Surv.,  Bull.  no.  225,  pp.  345-3G2.  1904. 
Describes  the  geologic  structure  of  the  field,  the  character  and  occurrence  of  the  coals,  and 
the  mining  operations. 
6.  The  bentouite  deposits  of  Wyoming. 
U.  S.  Geol.  Surv.,  Bull.  no.  260,  pp.  559-563,  1  fig.,  1905. 
Describes  the  physical  properties,  occurrence,  and  geological  relations  of  bentonite,  a  variety 
of  clay. 
Fisher  (Cassius  A.),  Barbour  (Erwin  H.)  and. 
1.  A  new  form  of  calcite-sand  crystal. 
See  Barbour  (E.  H.)  and  Fisher  (C.  A.),  1. 
2.  The  geological  bibliography  of  Nebraska. 
See  Barbour  (E.  H.)  and  Fisher  (C.  A.),  2. 
Fisher  (Cassius  A.),  Gould  (C.  N. )  and. 
1.  The  Dakota  and  Carboniferous  clays  of  Nebraska. 
See  Gould  (C.  N.)  and  Fisher  (C.  A.),  1. 
Fisher  (0.). 
1.  On  rival  theories  of  cosmogony. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  11,  pp.  414-422,  1901. 
Discusses  the  meteoric  and  nebular  theories  as  to  the  origin  of  the  earth. 
2.  Mathematical  notes  to  rival  theories  of  cosmogony. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  12,  pp.  140-142,  1901. 
Contains  mathematical  notes  supplementary  to  the  author's  previous  paper. 
Fitzhugh  (G.  D.). 
1.  Portland-cement  materials  of  southwestern  Arkansas. 
Eng.  Assoc.  South,  Trans.,  1904,  vol.  15,  pp.  33-42,  [1905]. 
Describes  the  occurrence  and  composition  of  chalk  suitable  for  the  manufacture  of  cement. 
Fletcher  (Hugh). 
1.  Geological  nomenclature  in  Nova  Scotia. 
Nova  Scotian  Inst.  Sci.,  Trans.,  vol.  10,  pp.  323-329,  1902. 
Discusses  the  age  of  the  New  Glasgow  conglomerate. 
2.  Kings  and  Hants  counties,  Nova  Scotia. 
Can.  Geol.  Surv.,  Summ.  Kept,  for  1901,  pp.  208-214,  1902. 
Describes  the  author's  observations  in  this  area. 
3.  Surveys  and  explorations  in  Richmond,  Cape  Breton,  Kings,  Cumberland,  and 
other  counties  in  Nova  Scotia. 
Can.  Geol.  Surv.,  Summ.  Kept,  for  1902,  pp.  388-399,  1903. 
Describes  geologic  work  in  the  coal  fields  of  Nova  Scotia. 
4.  Limits  of  the  workable  coals  of  the  Cumberland  coal  fields  in  Nova  Scotia. 
Nova  Scotia  Mg.  Soc,  Jour.,  vol.  8,  pp.  123-126,  1904. 
Includes  observations  upon  the  geology  of  the  region,  and  discusses  the  possibility  of  work- 
able coal  seams  being  found  at  certain  points  in  the  light  of  geological  facts  presented. 
5.  Northern  part  of  Nova  Scotia. 
Can.  Geol.  Surv.,  Summ.  Rept.  for  1903,  pp.  160T174,  1904. 
Gives  notes  upon  the  geology  and  mineral  resources  of  this  area. 
