SURVEY  PUBLICATIONS  ON  PHOSPHATES  AM) 
OTHER  MINERAL  FERTILIZERS. 
The  following  papers  relative  to  phosphates,  gypsum  (land  plaster), 
and  other  mineral  materials  used  as  fertilizers  have  been  published  by 
the  United  States  Geological  Survey  or  by  members  of  its  staff.  Fur- 
ther references  will  be  found  under  the  head  of  "Gypsum"  in  the  list- 
on  page  266  of  this  volume: 
Adams,  <■.  1.  and  i  there.  Gypsum  <1< •] >< .si i s  in  the  United  States.  Bulletin  XT. 
223.      L27  pp.     1904. 
Darton,  X.  II.  Notes  "n  the  geology  "f  the  Florida  phosphates.  In  Am.  Jour. 
Sci..  3d  ser.,  vol.  11.  pp.  L02   105.     L891. 
Eckel.  E.  C.  Recently  discovered  extension  of  Tennessee  white-phosphate  field| 
InMineral  Resources  1'.  S.  for  L900,  pp.  Ml'  813.     L90L 
Utilization  of  iron  and  steel  slags.     In  Bulletin  X".  213,  pp.  221  231.     L903) 
The  while  phosphates  of  Decatur  County.  Tenn.     In  Bulletin  No.  213.  pp. 
424-425.     1903. 
Eldridge,  (i.  II.  A  preliminary  Bketch  of  the  phosphates  of  Florida.  In  Trans. 
Am.  [nst.  Min.  Eng.,  vol.  21,  pp.  L96-231.     1893. 
II  \^  es,  C.  W.  The  Tennessee  phosphates.  In  Sixteenth  Ann.  Kept.,  pt.  4,  pp. 
i;io-!;:;<>.     L895. 
The  Tennessee  phosphates.     In  Seventeenth  Ann.  Rept.,  pt.  2,  pp.  1-38. 
L896. 
The  white  phosphates  of  Tennessee.     In  Trans.  Am.  Inst.  Min.  Eng.,  vol. 
25,  pp.  19-28.      1896. 
A  brief  reconnaissance  of  tin-  Tennessee  phosphate  field.     In  Twentieth 
Ann.  Rept.,  pi.  6,  pp.  633-638.      L899. 
The  geological  relations  of  the  Tennessee  brown  phosphates.     In  Science, 
vol.  12,  p.  L005.     1900. 
Tennessee   white   phosphate.     In    Twenty-firel    Ann.    Rept.,    pt.   3,    pp. 
473   in-..     L901. 
Origin  and  exteni  0f  the  Tennessee  white  phosphates.     In  Bulletin  No. 
213,  pp.  lis   123.     L903. 
[hlseng,  M.  C.  A  phosphate  prospect  in  Pennsylvania.  In  Seventeenth  Ann. 
Kept.,  pt.  3,  pp.  955  957.     L896. 
Memminger,  C.  <i.  Commercial  development  of  the  Tennessee  phosphates.  In 
Sixteenth  Ann.  Rept.,  pt .   1.  pp.  631   635.      1895. 
Moses,  <  >.  A.  The  phosphate  deposits  of  South  Carolina.  In  Mineral  Resources 
V.  S.  for  1882,  pp.  504  521.      1883. 
Orton.  E.  Gypsum  or  land  plaster  in  Ohio.  In  Mineral  Resources  I'.  S.  for  L887, 
pp.  596-601.     1888. 
Penrose,  R.  A.  F.  Nature  and  origin  of  deposits  of  phosphate  of  lime.  Bulletin 
No.  46.     143  pp.     1888. 
Stubbs,  W.  C.  Phosphates  of  Alabama.  In  Mineral  Resources  U.  S.  for  1883-84, 
pp.  794-803.     1885. 
Wilber,  F.  A.     Greensand  mails  in  the  United  States.     In  Mineral  Resources  U.  S. 
for  1882.  pp.  522-526.     1883. 
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