FOR   THE    YEARS    1901-1905,  INCLUSIVE.  205 
Lakes  (Arthur) — Continued. 
7.  The  turquoise  mines  [New  Mexico]. 
Mines  &  Minerals,  vol.  21,  pp.  395-396,  1901. 
8.  Change  of  ore  bodies  with  change  of  country  rock. 
Mines  &  Minerals,  vol.21,  p.  417,  19C1. 
Discusses  some  phenomena  accompanying  ore  deposition. 
9.  Peculiar  geological  formations  of  the  Southern  States. 
Mines  &  Minerals,  vol.  21,  p.  430,  1901. 
Contains  notes  on  the  general  geology  of  the  region. 
10.  Oil  fields  of  California. 
Mines  &  Minerals,  vol.21,  pp.  467-470,  2  figs.,  1901. 
Describes  the  general  geology  of  southern  California  and  the  occurrence  of  oil. 
11.  Prospecting  for  oil  in  Colorado. 
Mines  &  Minerals,  vol.21,  pp.  481-483,  4  figs.,  1901. 
Describes  general  geology  and  occurrence  of  oil  in  Colorado. 
12.  Building  and  monumental  stones  of  Colorado. 
Mines  &  Minerals,  vol.  22,  pp.  29-30,  5  figs.,  1901. 
Describes  the  general  characters  and  occurrence  of  various  building  stones. 
13.  Sedimentary  building  stones  of  Colorado. 
Mines  &  Minerals,  vol.  22,  pp.  62-64,  5  figs.,  1901. 
Describes  occurrence  and  character  of  building  stones  from  sedimentary  strata. 
14.  Petroleum  in  western  North  America. 
Mines  &  Minerals,  vol.  22,  pp.  78-80,  1901. 
Describes  the  occurrence  of  oil  in  this  region. 
15.  The  geology  of  the  oil  fields  of  Colorado. 
Colo.  Sch.  Mines,  Bull.,  vol.1,  pp.  221-226,  1901. 
Describes  the  stratigraphy  and  geologic  structure  of  the  oil  fields  and  the  occurrences  of  oil. 
16.  Prospecting  for  oil  in  Colorado. 
Mines  <fc  Minerals,  vol.  22,  pp.  107-109,  5  figs.,  1901. 
Contains  notes  on  the  occurrence  of  oil. 
17.  Oil  Springs  of  Rio  Blanco  County,  Colorado. 
Mines  &  Minerals,  vol.  22,  pp.  150-152,  5  figs.,  1901. 
Describes  the  geologic  structure  and  occurrence  of  oil. 
18.  Some  Idaho  mining  districts. 
Mines  &  Mineral?,  vol.  22,  pp.  203-206,  5  figs.,  1901. 
Contains  notes  on  the  geology  of  the  State  and  the  character  and  occurrence  of  ore  bodies. 
19.  The  geological  occurrence  of  oil  in  Colorado. 
Abstract:  Sci.  Am.  Suppl.,  vol.  52,  p.  21505,  1901. 
20.  The  Buckhorn  mine  and  the  San  Luis  Park,  Colorado.      Peculiar  formations 
which  contain  some  ores  and  present  a  striking  appearance. 
Mines  &  Minerals,  vol.  22,  pp.  322-323,  3  figs.,  1902. 
21.  Oil  in  Colorado,  the  geology  of  the  deposits,  and  the  various  horizons  in  which 
signs  of  oil  have  been  found. 
Mines  &  Minerals,  vol.  22,  pp.  256-257,  1902. 
22.  A  lesson  on  faults.     Sketch  of  the  Aspen  mining  region,  Colorado,  in  which  tht 
effects  of  faulting  in  the  past,  and  still  going  on,  are  shown. 
Mines  &  Minerals,  vol.  22,  pp.  341-343,  6  figs.,  1902. 
23.  The  coal,  graphite,  and  oil  fields  of  Raton,  New  Mexico.     The  location  and  geo 
logical  character.     The  coal  mines. 
Mines  &  Minerals,  vol.  22,  pp.  350-352,  5  figs.,  1902. 
24.  The  western  oil  field  of  Mesa  and  Rio  Blanco  counties,  Colorado.      A  regior 
geologically  favorable  for  oil. 
Mines  &  Minerals,  vol.  22,  pp.  388-389,  4  figs.,  1902. 
Describes  the  general  geology  of  the  region. 
