warman.]  TOPOGRAPHIC    FOLIOS.  Ill 
2.  Physiographic  types,  by  Henry  Gannett.  1900.  Folio.  Eleven 
pages  of  descriptive  text  and  the  following  topographic  sheets:  Nor- 
folk (Va.-N.  C),  a  coast  swamp;  Marshall  (Mo.),  a  graded  river; 
Lexington  (Nebr.),  an  overloaded  stream;  Harrisburg  (Pa.),  Appala- 
chian ridges:  Poteau  Mountain  (Ark.-Ind.  T.),  Ozark  ridges;  Mar- 
shall (Ark.),  Ozark  Plateau:  West  Denver  (Colo.),  hogbacks;  Mount 
Taylor  (X.  Mex.),  volcanic  peaks,  plateaus,  and  necks;  Cucamonga 
(Cal.),  alluvial  cones:  Crater  Lake  special  (Oreg.),  a  crater.  Price,  25 
cents. 
3.  Physical  geography  of  the  Texas  region,  by  Robert  T.  Hill. 
L900.  Folio.  Twelve  pages  of  text  (including  11  cuts);  5  sheets  of 
special  half-tone  illustrations;  ;>  topographic  sheets,  one  showing  types 
of  mountains,  three  showing  types  of  plains  and  scarps,  and  one  show- 
ing types  of  rivers  and  canyons;  and  a  new  map  of  Texas  and  parts  of 
adjoining  territories.     Price,  50  cents. 
