CONTENTS.  5 
Page. 
Mica,  graphite,  etc 400 
North  Carolina: 
Mica  deposits  of  western  North  Carolina,  by  D.  B.  Stcrrett 400 
Wyoming: 
Mica  in  the  Hartville  uplift,  by  S.  H.  Ball 423 
Graphite  in  the  Haystack  Hills,  Laramie  County,  by  S.  H.  Ball 426 
Survey  publications  on  mica,  graphite,  etc 429 
Mineral  paints -. 430 
General : 
Southern  red  hematite  as  an  ingredient  of  metallic    paint,    by    E.    F. 
Burchard 430 
Pennsylvania: 
Mineral  paint  ores  of  Lehigh  Gap,  by  E.  C.  Eckel 435 
Abrasive  materials 438 
California: 
Diatomaceous  deposits  of  northern  Santa  Barbara  County,  by  Ralph 
Arnold  and  Robert  Anderson 438 
Survey  publications  on  abrasive  materials 448 
Phosphates  and  phosphorus 449 
General : 
Phosphate  deposits  in  western  United  States,  by  F.  B.  Weeks  and 
W.  F.  Ferrier 449 
Arkansas: 
Developed  phosphate  deposits  of  northern  Arkansas,  by  A.  H.  Purdue.       463 
Pennsylvania: 
Phosphorus  ore  at  Mount  Holly  Springs,  by  G.  W.  Stose 474 
Survey  publications  on  phosphates  and  other  mineral  fertilizers 484 
Sulphur  and  pyrite 485 
Utah: 
The  Cove  Creek  sulphur  beds,  by  W.  T.  Lee 485 
Survey  publications  on  sulphur  and  pyrite 490 
Index 491 
