FOR   THE   YEARS   1901-1905,  INCLUSIVE. 
435 
Colorado— Continued. 
Geology  of  the  Needle  Mountains  quad- 
rangle, Irving  and  Emmons,  1. 
Geology   of   the   oil   fields   of   Colorado, 
Lakes,  15. 
Geology  of  the  ore  deposits  of  the  Ouray 
district,  Howe,  4. 
Geology  of  the  Rico  quadrangle,   Cross 
<W.)\  7. 
Geology   of  Virginius  mine,   Purington, 
7. 
Geology  of  western  ore  deposits.  Lakes, 
104. 
Gisements    de    minerals    de    zinc.    De 
maret,   1. 
Glacial  erosion  in  the  Sawatch  Range, 
Davis   (W.  M.),  54. 
Glacial   placer   beds   on   flanks   of  Mos- 
quito Range,  South  Park,  Lakes,  30. 
Glaciation  of  the  Sawatch  Range,  Davis 
(W.  M.).  58. 
Gold     production     of     North     America, 
Austin,   5. 
Gold     production     of     North     America. 
Lindgren.    1G. 
Gold  deposits  of  Plomo,  Gunther,   1. 
Grand  River  coal  field,  Lakes,  87. 
Granite  of  west  Sugar  Loaf  Mountain, 
Henry,  1. 
Greenstone    schists    in    the    San    Juan 
Mountains.   Howe,   3. 
Grottes  des  Etats-Unis,  Le  Couppey  de 
la  Forest,  1. 
Gypsum    deposits    in    Colorado,    Lakes, 
81. 
Hallopus,     Baptanodon,     and     Atlanto- 
saurus  beds  of  Marsh,  Williston,  25. 
Hanging  valleys  of  Georgetown,  Crosby, 
6. 
Hot     and     mineral     springs     of    Routt 
County.  Colorado.  Lakes,  97. 
Influence    of    country-rock    on    mineral 
veins.  Weed,  6. 
Jurassic  dinosaur  deposits  near  Canyon 
City,  Hatcher,  6. 
La  Plata  coal  field,  Lakes,  84. 
La  Plata  folio,  Cross  and  Spencer,  1. 
La  Plata  Mountains,  Lakes,  41. 
Leadville  district,  Warwick,  2. 
Lodes    of    Cripple    Creek,    Rickard    (T. 
A.),  8,   12. 
Mica-andesite  of  west  Sugar  Loaf  Moun- 
tain, Blake   (J.  C),  1. 
Mineralogical  mistake,  Van  Diest,  1. 
Mineralogical  notes.  Headden,   1,  4. 
Mineralogical  notes,  Warren,  1. 
Mines   and   ore   deposits   of   the   Rosita 
and     Silver     Cliff,     mining     district, 
Lakes,  53. 
Mines  of  Ouray  County,  Downer  and  De 
Cou,  1. 
Morrison  formation,  Lee  (W.  T.),  1. 
Morrison  formation,  Stanton,  8. 
Morrison   shales   of   southern   Colorado 
and  northern   New  Mexico,   Lee    (W. 
T.),  3. 
Natural  gas  in  Colorado,  Lakes,  26. 
Colorado— Continued. 
Neglected  mine  and  Nearby  properties, 
Emmons    (W.   II.),  1. 
New  Canidae  from  Miocene  of  Colorado, 
Matthew  (W.  D.),  5. 
New  genus  and  species  from  Jurassic  of 
Colorado,  Hay,  8. 
New  sauropod   dinosaur  from   Jurassic 
of  Colorado,  Hatcher.  18. 
New  species  of  Cladodus  from  the  De 
vonian,  Hay,  4. 
Nodular-bearing     schists     near     Pearl 
Read,  2. 
Occurrence   of   limburgite,   Stevens    (E 
A.),  1. 
Occurrence  of  mica  in  Boulder  County 
Schwa  rz,  1. 
Occurrence    of    ore    at    Red    Mountain 
Schwarz,  2. 
Oil  field  of  Mesa  and  Rio  Blanco  coun 
tics,   Lakes,  24. 
Oil-impregnated   volcanic   dikes,   Lakes 
98. 
Oil  in  Colorado.  Lakes,  21. 
Oil  situation  in   Colorado,  Lakes.  48. 
Oil     springs    of    Rio     Blanco     County, 
Lakes,  17. 
Olivinite    dike     of    Magnolia     district, 
Whi  taker,  1. 
Ore    deposits     in    Georgetown     mining 
district,  Spurr  and  Garrey.  1. 
Ore  deposits  near  Lake  City,  Irving,  7. 
Ore  deposits  of  Colorado,  Lakes,  73. 
Ore  deposits  of   Rico  Mountains,   Ran- 
some,  3. 
Ore    deposits    of    the    American-Nettie 
mine,   Ouray,   Downer,    1. 
Ore    deposits    of    the    Ouray    district, 
Irving.  ('). 
Ore  deposits  of  the  Ouray  quadrangle, 
Irving.  9. 
Ore  horizons   in   San  Juan   Mountains, 
Purington.  11. 
Ore  occurrence  at  Leadville,  Robbins.  1. 
Overturns   in   the  Denver   basins,   Hen- 
derson  (J.),  1. 
Paleontology  of  the  Boulder  area,  Hen- 
derson (J.),  3. 
Peat   and    its   relation    to   coal.    Lakes, 
96. 
Peculiar  ore  deposit,  Colburn,  1. 
Plastic  dike  near  Ouray,  Ransome,  2. 
Pleistocene     geology     of    the     Sawatch 
Range,    near    Leadville,    Capps    and 
Leffingwell,   1. 
Prairie    region    of    northeastern    Colo- 
rado. Lakes,  32. 
Prospecting  for  oil,  Lakes.  II,  16. 
Prospecting  for  oil  in  the  region  of  the 
cliff  dwellers,   Lakes.   27. 
Radium    in    an    American   ore,    Phillips 
(A.  ILL  1. 
Red  beds  of  Colorado,  Cross  and  Howe, 
2 
Red    Beds    of    southwestern    Colorado, 
Cross  and  Howe.  4. 
Redcliff  ore  deposits,  Lakes.  44. 
