572 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Mineralogy— Continued. 
Occurrence  of  thaumasite,  Penfield  and 
Pratt,  1. 
Occurrence  of  zoisite  and   thulite,  Bib- 
bins,  1. 
Octahedrite  and  brookite,  Robinson  (H. 
H.),  1. 
On  bixbyite,  Penfield  and  Foote,  1. 
On  calaverite,  Penfield  and  Ford.   1. 
On  californite,  Clarke  and  Steiger,  2. 
On  clinohedrite,  Fenfield  and  Foote,  2. 
On  gabnite,  Brush,  3. 
On  hortonolite,  Brush,  1. 
On  mordenite,  Pirsson,  2. 
On  northupite,  pirssonite,  etc.,  Pratt.  'A. 
On  pearceite,  Penfield,  4. 
On  spangolite,  Penfield,  3. 
On  sussexite,  Brush,  2. 
On  wellsite,  Pratt  and  Foote,  1. 
Optische    Orientirung    des    Albit     von 
Amelia,  Becke,  1. 
Ore  deposits  of  Rico  Mountains,   Colo 
rado.  Ransome,  •">. 
Ore  deposits  of  Monte  Cristo,  Spurr,  ."». 
Oscuro  Mountain  meteorite.  Hills.  :;. 
Oxygen   in   its   relation   to   mineralogy, 
Cooper  (J.  C.)i  1. 
Palacheite,  Eakle,  4. 
Peculiar    occurrence    of   bitumen,    Mor- 
gan and  Tallmon,  2. 
Persimmon  Creek  meteorite,  Tassin,  4. 
Phlogopite  crystal.  McNairn,  1. 
Phosphorescent  sphalerite.  Eakle.  G. 
Phosphorus  in  Saline  Township  meteor- 
ite, Farrington,  10. 
Physical     geography,     etc.,     of     Essex 
County,  Mass.,  Sears,  1. 
Platinum    in    nickel-copper    ores    from 
Sudbury,  Dickson.  :;. 
Pre-terrestial     history     of     meteorites, 
Farrington,    I. 
Prismatic  crystals  of  hematite,  McKee, 
1. 
Production   des  pierres  precieuses   aux 
Etats-Unis,  Kunz,  1. 
Progress  of  mineralogy  in   1899,    I  Iain 
il ton  and  Withrow,  1. 
Pseudomorphs     and     crystal     cavities, 
Rowe,   4. 
Purpurite,   a   new   mineral,   Graton  and 
Schaller,    1. 
Pyrite  and  marcasite,  .Tulien,  5. 
Pyrite  and  marcasite,  Stokes,  1. 
Quartz  from    San   Diego   County.    War- 
ing,  1. 
Quecksilbermineralien  von  Terlingua  in 
Texas,  Moses,  4. 
Radium    in    an    American    ore,    Phillips 
(A.  H.),  1. 
Rare  metals  from  Rambler   mine.   Wyo- 
ming, Read.   1. 
Recent  mineralogical   literature,    Moses 
and  Luquer,  2,  :;. 
Red  beryl  from  Utah,  Hillebrand,  5. 
Reed  City  meteorite,  Preston  i  II.  L.),  4. 
Regeneration   of  clastic  feldspar,  Win- 
chell    (N.   H.),  9. 
Mineralogy— Continued. 
Relations  of  tetrahedral  combinations 
to  crystalline  form,  Blake   (J.  C),  2. 
Replacement  of  quartz  by  pyrite  and 
corrosion  of  quartz  pebbles,  Smyth,  6. 
Report  of  section  of  chemistry  and  min- 
eralogy, Hoffmann,  1,  4,  6. 
Report  of  State  geologist  of  Nebraska, 
Barbour  (E.  II.),  8. 
Results  of  late  mineral  research  in 
Llano  County,  Hidden,  1. 
Rickardite,  Ford  (W.  E.),  2. 
Road-making  materials  of  Pennsyl- 
vania, Ihlseng,  1. 
Rodeo  meteorite,   Farrington,   1G. 
Ste.  Genevieve  meteorite,  Ward  (H. 
A.),  1. 
Second  Branchville  paper,  Brush  and 
Dana,  2. 
Secondary  enrichment  in  ore  deposits 
of  copper,  Kemp,  33. 
Serpentines  of  Manhattan  Island,  New- 
land.  1. 
Shelburne  meteorite,  Borgstrom,  1. 
Silverton  folio,   Ransome,   16. 
Sodalite  syenite  (ditroite)  from  Ice 
River  Valley,  Canadian  Rocky  Moun- 
tains, Bonney,  1. 
Souesite,  a  native  iron-nickel  alloy, 
Hoffmann,  7. 
Sperrylite,  Wells,  1. 
Spinel  twins  of  pyrite,  Nicol,  1. 
Spodumene,  and  results  of  its  altera- 
tion, Brush  and  Dana,  4. 
Spodumene  from  San  Diego  County, 
Schaller,  2. 
Stibnite  at  Steamboat  Springs,  Lind- 
gren,  24. 
Structure  of  meteorites,   Farrington,  2. 
Study  of  minerals  in  the  laboratory, 
Day   (A.  L.).  1. 
Synthesis  of  chalcocite  and  its  genesis 
at  Butte.  Mont.,  Winchell    (II.  V.),  2. 
Tables  of  minerals,  Penfield,  6. 
Third  Branchville  paper,  Brush  and 
Dana,  3. 
Titaniferous  magnetite  in  Wyoming, 
Kemp.  :'.<*>. 
Titaniferous  pyroxene,  Winchell  (A. 
N.),  3. 
Tourmaline  contact  zones  near  Alex- 
andria Bay,  N.  Y.,  Smyth   (C.  H.),3. 
Tourmaline  from  San  Diego  County, 
Sterrett,  1. 
Tourmaline  localities  of  southern  Cali- 
fornia, Schaller,  4. 
Treatise  on  metamorphism,  Van  Hise, 
12. 
Tungsten  mine  at  Trumbull,  Conn., 
Hobbs,   5. 
Two  tellurium  minerals  from  Colorado, 
Hillebrand,   G. 
Tychite,  Penfield  and  Jamieson,  1. 
Ultimate  disintegration  products  of  the 
radio  active  elements,  Boltwood,  1. 
Uranophane  in  Georgia,  Watson  (T. 
L.),  7. 
