warman.]  MINERAL    RESOURCES    FOR    1888.  57 
Petroleum,  by  Joseph  D.  Weeks,  pp.  436-463. 
Natural  gas,  by  Joseph  D.  Weeks,  pp.  464-502. 
Structural  materials,  by  William  C.  Day,  pp.  503-551. 
The  building  industry  in  general,  pp.  503-511. 
Building  stone,  pp.  511-527. 
Cement,  pp.  527-532. 
Lime,  pp.  532-534. 
Brick,  pp.  534-5:)  1 . 
Abrasive  materials,  pp.  552-554. 
Precious  stones,  by  George  P.  Kunz,  pp.  555-579. 
Fertilizers,  pp.  580-594. 
<  rypsum,  pp.  595-603. 
Gypsum  or  land  plaster  in  Ohio,  by  Edward  Orton,  pp.  596-601. 
Sulphur,  by  William  ( '.  Day,  pp.  604-610. 
Pyrites,  pp.  609-610. 
Salt,  by  William  A.  Etaborg,  pp. 611-625. 
Bromine,  pp.  626-627. 
Potassium  salts,  by  William  ( '.  Day,  pp.  628-650. 
Sodium  salts,  by  William  C.  Day,  pp.  651-658. 
Fluorspar,  p.  659. 
Mica,  pp. 660-671. 
Mica  mining  in  North  Carolina,  by  William  B.  Phillips,  pp.  661-671. 
Graphite,  pp.  672-673. 
Mineral  paints,  pp.  674-679. 
Mineral  water-,  by  A.  C.  Peale,  pp. 680-687. 
Useful  minerals  of  the  United  States,  edited  by  Albert  Williams,  jr.,  pp.  688-812. 
Index,  pp.  813-832. 
Department  of  the  Interior  United  States  Geological  Survey  J.  W. 
Powell  Director  Mineral  resources  of  the  United  States  Calendar 
year  1888  David  T.  Day  chief  of  division  of  mining"  statistics  and  tech- 
nology    [Vignette]     Washington     Government  Printing  Office    1890 
8°.     vii,652pp.     Bound  in  black  cloth.     Trice,  50  cents. 
Summary,  pp.  1-11. 
Iron,  pp.  L2-35. 
The  iron  and  steel  industries  of  the  United  States  in  1888  and  1889,  by  James 
M.  Swank,  pp.  12-32. 
Iron  in  the  Rocky  Mountain  division,  by  F.  F.  Chisolm,  pp.  33-35. 
Gold  and  silver,  pp.  36-42. 
Copper,  by  C.  Kirchhoff,  jr.,  pp.  43-77. 
Lead,  by  C.  Kirchhoff,  jr.,  pp.  78-91. 
Zinc,  by  C.  Kirchhoff,  jr.,  pp.  92-96. 
Quicksilver,  pp.  97-107. 
Nickel,  pp.  108-118. 
Chromium,  pp.  119-122. 
Manganese,  by  Joseph  D.  Weeks,  pp.  123-143. 
Tin,  pp.  144-159. 
Aluminum,  by  R.  L.  Packard,  pp.  160-164. 
Platinum,  pp.  165-167. 
Coal,  by  Charles  A.  Ashburner,  pp.  168-394. 
Arkansas,  by  Arthur  Winslow,  pp.  216-224. 
Dakota,  by  F.  F.  Chisolm,  p.  240. 
Illinois,  by  J.  S.  Lord,  pp.  242-256. 
Wyoming,  by  F.  F.  Chisolm,  pp.  390-394. 
