170  BIBLIOGRAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Hobbs  (William  Herbert) — Continued. 
10.  The  mapping  of  the  crystalline  schists.     Part  I.     Methods. 
Jour.  Geol  ,  vol.  10,  pp.  780-792,  1  pi.,  1  fig.,  1902. 
Describes  methods  of  studying  the  occurrence,  character,  and  relations  of  crystalline  schists. 
11.  The  mapping  of  the  crystalline  schists.     II.     Basal  assumptions. 
Jour.  Geol.,  vol.  10,  pp.  858-890,  11  figs.,  1902. 
Discusses  the  mechanics  of  deformation  and  the  criteria  for  recognizing  folds  and  faults. 
12.  An  instance  of  the  action  of  the  ice  sheet  upon  slender  projecting  rock  masses. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  14,  pp.  399-403.  1  pi.,  2  figs.,  1902. 
Describes  the  glacial  phenomena  in  the  Pomperaug  Valley  (Connecticut ). 
13.  A  new  meteorite  from  Algoma,  Kewaunee  County,  Wisconsin. 
Abstract:  Science,  new  ser.,  vol.  16,  p.  200,  1902. 
14.  The  geological  structure  of  the  southwestern  New  England  region. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  15,  pp.  437-44(3,  1903. 
Discusses  structural  features  of  the  region  and  their  origin. 
15.  Meteorite  from  Algoma.  Wisconsin. 
Geol.  Soc.  Am.,  Bull.,  vol.  11,  pp.  97-1  16,  5  pis..  1903. 
Describes  surface,  composition,  and  texture. 
16.  Tungsten  mining  at  Trumbull,  Conn. 
0~.  S.  Geol.  Surv.,  Bull.  no.  213,  p.  98,  1903. 
Describes  the  occurrence  of  the  ore  and  methods  employed  in  mining  and  extracting  the 
metal. 
17.  The  frontier  of  physiography. 
Science,  new  ser.,  vol.  18,  pp.  538-549,  1903. 
18.  Geology  of  the  river  channels  about. Manhattan  Island. 
Abstract:  X.  Y.  Acad.  Sci.,  Ann.,  vol.  15,  pp.  74-76,  1903. 
19.  A  record  of  post-Newark  depression  and  subsequent  elevation  within  the  aiea 
of  southwestern  New  England. 
Abstract:  Science,  new  ser..  vol.  17,  p.  223,  1903. 
20.  Evidences  of  post-Newark  normal  faulting  in  the  crystalline  rocks  of  southwest- 
ern New  England. 
Abstract:  Science,  new  ser.,  vol.  17,  p.  223,  1903. 
21.  Configuration  of  the  rock  floor  of  the  vicinity  of  New  York. 
Abstract:  Science,  new  ser.,  vol.  17,  p.  298,  1903;  Sci.  Am.  Suppl.,  vol.  55,  p.  22647,  1903. 
22.  Lineaments  of  the  Atlantic  border  region. 
Geol.  Soc.  Am.,  Bull.,  vol.  15,  pp.  483-506,  3  pis.,  4  figs.,  1904.     Intern.  Geog.  Cong.,  Eighth, 
Rept.,  pp.  193-203,  1  pi.,  1905. 
Describes  the  orientation  of  earth  lineaments,  namely,  mountain  ranges,  ridges,  borders  of 
plateaus,   drainage  lines,   coast  lines,  boundary  lines  of  geologic  formations,  fall  lines, 
ooundaries  of  physiographic  provinces,  etc. 
23.  Tectonic  geography  of  southwestern  New  England  and  southeastern  New  York. 
Abstract;  Geol.  Soc.  Am.,  Bull.,  vol.  15,  pp.  554-557,  1904;  Science,  new  ser.,  vol.  19,  p.' 527,. 
1904;  Sci.  Am.  Suppl.,  vol.  57,  p.  23116,  1904. 
Discusses  the  relations  of  fault  systems  to  one  another  in  the  area  considered,  and  related 
geographic  features. 
24.  Origin  of  the  channels  surrounding  Manhattan  Island,  New  York. 
Geol.  Soc.  Am.,  Bull.,  vol.  16,  pp.  151-182,  1  pi.,  1905. 
Describes  in  detail  various  data  secured  bearing  upon  the  configuration  of  the  suface  of  the 
rock  beneath  the  Manhattan  Island  area,  and  discusses  the  origin  of  the  water  channels. 
25.  The  correlation  of  fracture  systems  and  the  evidences  for  planetary  dislocations 
within  the  earth's  crust. 
Wis.  Acad.  Sci.,  Trans.,  vol.  15,  pp.  15-29,  1  pi.,  1905. 
26.  Examples  of  joint-controlled  drainage  from  Wisconsin  and  New  York. 
Jour.  Geol.,  vol.  13,  pp.  363-374,  7  figs.,  1905. 
