wabman.]  MINERAL    RESOURCES    FOR    1886.  55 
Iodine,  by  David  T.  Day,  pp.  488-490. 
Borax,  pp.  491-493. 
Sulphur,  by  William  C.  Day,  pp.  494-500. 
Pyrites,  by  Herbert  J.  Davis,  pp.  501-517. 
Mica,  pp.  518-520. 
Asbestufc.  pp.  521-522. 
Feldspar,  by  William  C.  Day,  p.  523. 
Mineral  painty,  by  Marcus  Benjamin,  pp.  524-533. 
Talc,  by  G.  F.  Perrenoud,  pp.  534-535. 
Mineral  waters,  by  A.  C.  Peale,  pp.  536-543. 
Glass  materials,  by  Jos.  D.  Weeks,  pp.  544-557. 
Index,  pp.  559-576. 
Department  of  the  Interior  United  States  Geological  Surve}^  J.  W. 
Powell  Director  Mineral  resources  of  the  United  States  Calendar 
year  1886  David  T.  Day  chief  of  division  of  mining  statistics  and  tech- 
nology    [Vignette]     Washington     Government  Printing  Office     1887 
8°.     viii,  813  pp.     Bound  in  black  cloth.     Price,  50  cents. 
Summary,  pp.  1-10. 
Iron,  pp.  11-103. 
The  American  iron  trade  in  1886,  by  James  M.  Swank,  pp.  11-22. 
The  American  iron  industry  from  its  beginning  in  1619  to  1886,  by  James  M. 
Swank,  pp.  23-38. 
The  iron  ores  east  of  the  Mississippi  River,  by  John  Birkinbine,  pp.  39-103. 
Gold  and  silver,  pp.  104-108. 
Copper,  by  C.Kirchhoff,  jr.,  pp.  109-139. 
Lead,  by  C.  Kirchhoff,  jr.,  pp.  140-153. 
Zinc,  byC.  Kirchhoff,  jr.,  pp.  154-159. 
Quicksilver,  pp.  L60-168. 
Nickel,  pp.  169-173. 
Cobalt,  pp.  174-175. 
Chromium,  pp.  176-179. 
Manganese,  by  Jos.  D.  Weeks,  pp.  180-213. 
Tin,  pp.  214-217. 
Tungsten,  pp.  218-219. 
Aluminum,  by  R.  L.  Packard,  pp.  220-221. 
Platinum  and  iridium,  pp.  222-223. 
Coal,  by  Charles  A.  Ashbumer,  pp.  224-377. 
The  manufacture  of  coke,  by  Jos.  D.  Weeks,  pp.  378-438. 
Petroleum,  by  Jos.  D.  Weeks,  pp.  439-487. 
Natural  gas,  by  Jos.  D.  Weeks,  pp.  488-516. 
Structural  materials,  by  William  C.  Day,  pp.  517-580. 
The  building  industry  in  general,  pp.  517-536. 
Building  stone,  pp.  536-556. 
Cement,  pp.  556-564. 
Lime,  pp.  565-566. 
Brick,  pp.  566-580. 
Abrasive  materials,  pp.  581-594. 
Buhrstones,  by  William  A.  Raborg,  pp.  581-582. 
Grindstones,  by  William  A.  Raborg,  pp.  582-585. 
Corundum,  by  William  A.  Raborg,  pp.  585-586. 
Infusorial  earth,  pp.  587-588. 
Novaculite,  by  George  M.  Turner,  pp.  589-594. 
