SURVEY  PUBLICATIONS    ON    PORTLAND, 
NATURAL,  AND  PUZZOLAN 
CEMENTS. 
The  following  list  includes  the  principal  publications  on  cement 
materials  by  the  United  States  Geological  Survey,  or  by  members  of 
its  staff: 
Adams,  G.  I.,  and  others.  Economic  geology  of  the  Iola  quadrangle,  Kansas.  Bul- 
letin No.  238.     80  pp.     1904. 
Bassler,  R.  S.  Cement  materials  of  the  Valley  of  Virginia.  In  Bulletin  No.  200, 
pp.  531-544.     1905. 
(  'atlett,  C.  Cement  resources  of  the  Valley  of  Virginia.  In  Bulletin  No.  225,  pp. 
457-461.     1904. 
Clapp,  F.  G.  Limestones  of  southwestern  Pennsylvania.  Bulletin  No.  249.  52  pp. 
1905. 
Crider,  A.  F.  Cement  resources  of  northeast  Mississippi.  In  Bulletin  No.  2G0,  pp. 
510-521.     1905. 
Cummings,  U.  American  rock  cement.  A  series  of  annual  articles  on  natural 
cements,  appearing  in  the  volumes  of  the  Mineral  Resources  IT.  S.  previous  to  that  for 
1901. 
Duryee,  E.  Cement  investigations  in  Arizona.  In  Bulletin  No.  213,  pp.  372-380. 
1903. 
Eckel,  E.  C.  Slag  cement  in  Alabama.  In  Mineral  Resources  U.  S.  for  1900,  pp. 
747-748.     1901. 
The  manufacture  of  slag  cement.     In  Mineral  Industry,  vol.  10,  pp.  84-95. 
1902. 
The  classification  of  the  crystalline  cements.     In  Am.  Geologist,  vol.  29, 
pp.  146-154.     1902. 
■ —    Portland-cement  manufacturing.     In  Municipal  Engineering,  vol.  24,  pp. 
335-336;  vol.  25,  pp.  1-3,  75-76,  147-150,  227-230,  405-406.     1903. 
The  materials  and  manufacture  of  Portland  cement.     In  Senate  Doc.  No. 
19,  58th  Cong.,  1st  sess.,  pp.  2-11.     1903. 
Cement-rock  deposits  of  the  Lehigh  district.     In  Bulletin  No.   225,   pp. 
448-450.     1904. 
-    Cement  materials  and  cement  industries  of  the  United  Stat  es.     Bulletin  No. 
243.     395  pp.     1905-. 
The  American  cement  industry.     In  Bulletin  No.  260,  pp.  496-505.     1905. 
— — —  Portland-cement  resources  of  New  York.  In  Bulletin  No.  260,  pp.  522  531 1 
1905. 
— Cement  resources  of  the  Cumberland  Gap  district,  Tennessee- Virginia.     In 
Bulletin  No.  285,  pp.  374-376.     1906. 
Eckel,  E.  C,  and  Crider,  A.  F.  Geology  and  cement  resources  of  the  Tombigbee 
River  district,  Mississippi- Alabama.  Senate  Doc.  No.  165,  58th  Cong.,  3d  sess.  21 
pp.     1905. 
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