FOR   THE    YEARS    1901-1905,  INCLUSIVE. 
475 
Economic  geology— Continued. 
Pennsylvania — Continued. 
Recent    work    in    the    bituminous    coal 
field  of  Pennsylvania,  Campbell    (M. 
R.),  11. 
Rural   valley  folio,  Butts,  6. 
Slate  industry  at  Slatington,  Dale,  2. 
Slate  investigations  during  1904,  Dale, 
8. 
Waynesburg  folio,  Stone  (R.  W.),  6. 
/'//  Uii>p  in  e  Is  la  n  <ls. 
Coal   deposits   of  Batan    Island.    Smith 
(W.  D.),  1. 
Coal    deposits    of    Polillo    Island,    Wig- 
more,  1. 
Coal    deposits    on    the    Batan    military   [ 
reservation,  Wigmore,  2. 
Coal    Measures    of    the    Philippine    Is- 
lands, Burritt,  1. 
Geological    reconnoissance   of   Bulacan, 
McCaskey,  1. 
Geology     of     the     Philippine     Islands, 
Becker,    1. 
Pigholugan    and    Pigtao    gold    regions, 
Island  of  Mindanao,  Nichols   (J.  C), 
1. 
Sixth     annual     report    of    the     mining 
bureau,  McCaskey,  2. 
Rhode  Island. 
Cement  materials  and   industry  of  the 
United  States,  Eckel,  34. 
Clays  of  the  United  States,  Ries,  6. 
South  Carolina. 
Carolina  gold  deposits,  Weed,  3. 
Carolina  tin  belt,  Graton,  3. 
Cement  materials  and  industry  of  the 
United  States,  Eckel,  34. 
Clays  of  the  United  States,  Ries,  6. 
Mineral  resources,  Sloan,   1. 
Phosphate  deposits.  Brown  (L.  I'.),  1. 
Phosphate  industry,  Chazal,   1. 
Tin,  Struthers  and   Pratt,  1. 
Tin    deposits    of    the    Carolinas,    Pratt 
and  Sterrett,  1. 
South  Dakota. 
Age  of  Homestake  Icde,  Ilewett,  2. 
Alexandria  folio,  Todd  and  Hall,  1. 
Artesian    wells    in    North    and    South 
Dakota,  Upham,  1. 
Bald    Mountain    district    in    the    Black 
Hi!ls,   Blatchford,   2. 
Black  Hills  ore  deposits,  O'Harni,   1. 
Building  stones  of  South  Dakota.  Todd 
(J.  E.),  7. 
Cement  materials  and  industry  of  the 
United  States,  Eckel,  34. 
Deposit  of  fuller's  earth,  Cook,   1. 
Deposits    of    wolframite    in    the    Black 
Hills,  Irving,  I. 
De  Smet  folio,  Todd  and  Hall,  3. 
Economic    resources    of    Black    Hills, 
Irving  and  Emmons,  1. 
Edgemont  folio,  Darton  and  Smith,  1. 
Geology   and   mineralogy   of  the   Black 
Hills,  OTIarra,  3. 
Economic  geology — Continued. 
South   Dakota — Continued. 
Geology    and    underground    water    re- 
sources of  the  central  Great  Plains, 
Darton,  18. 
Geology  and  water  resources  of  James 
River  Valley,  Todd  and  Hall.  2. 
Geology  of  artesian  basins,  McCaslin,  1. 
Geology  of  Black  Hills,  Darton,  1. 
Geology  of  the  Black  Dills,  Jaggar,  5. 
Gold  ores  of  the  Black  Hills,  Chance,  1. 
Gold     production     of     North    America, 
Lindgren,    16. 
Golden  West  mine,  Storms,  5. 
Gypsum     deposits     in     South     Dakota, 
Darton,  15. 
Huron  folio,  Todd   (J.  E.),  15. 
Mineral    building    material,    fuels,    and 
waters      of      South      Dakota,      Todd 
(J.  E.),  5. 
Mineral       wealth       of       Black       Hills, 
O'Harra,  2. 
Mitchell  folio,  Todd   (J.  E.),  11. 
Newcastle  folio,  Darton,  14. 
Oelrichs  folio,  Dnrton,  8. 
Olivet  folio,  Todd  (.1.  E.),  0. 
Ore  deposits   of  northern   Black   Hills, 
Irving,  2. 
Ore  deposits  of  the  Black  Hills,  Irving, 
3,  4. 
Parker  folio,  Todd  (J.  E.),  10. 
Potsdam   formation  of   Bald    Mountain 
district,  Blatchford,  1. 
Problems   of   the   Dakota  artesian   sys- 
tem, Todd   (J.  E.),  2. 
Sundance  folio,  Darton,  26. 
Tungsten  ores  in  the  Black  Hills,  Sim- 
mons, 1. 
Wolframite  in  Black  Hills,  Forsyth,  1. 
Wolf  rami  te    in    Black    Hills,    Raymond 
(R.  W.),  2. 
Tennessee. 
Asheville  folio,  Keith,  9. 
Clays  of  the  United  States,  Ries,  6. 
Columbia  folio,  Hayes  and  Ulrich,  1. 
Copper  deposits  of  Appalachian  States. 
Weed,  17. 
Copper     deposits     of     eastern     United 
States,  Weed,  37. 
Copper    deposits    of    southern    United 
States,  Weed,  2. 
Cranberry  folio,  Keith,  4. 
Cumberland  Gap  coal  field,  Ashley,  3,  4. 
Cumberland  Plateau  coal  field,  Duffielcl, 
1. 
Deposits  of  copper  ores  at  Ducktown, 
Kemp,  10. 
Ducktown    copper-mining   district,    Mc- 
Callie,  4. 
Gisements   de   minerais   de  zinc,   Dem- 
aret,  1. 
Greeneville  folio,   Keith,   11. 
Horizons   of  phosphate  rocks,   Safford, 
1. 
Iron-ore    deposits     of    the    Cranberry 
district,  Keith,  5. 
Iron  ores  of  Shady  Valley,  Garrison,  2. 
