CLAY  RESOURCES  OF  THE  ST.  LOUIS  DISTRICT, 
MISSOURI. 
By  N.  M.  Fenneman. 
In  the  year  1905  St.  Louis  produced  and  sold  about  $5,000,000 
worth  of  clay  products,  this  being  about  one-thirtieth  of  the  entire 
output  of  the  United  States.     The  products  here  counted  comprise 
R re- day    mines 
Pennsylvanian  Mississippian 
Fig.  11.— Map  of  Cheltenham  district  and  vicinity,  St.  Louis. 
those  of  fire  clays,  shales,  and  brick  clays.     Inasmuch  as  a  very  large 
proportion  of  the  total  consisted  of  fire-clay  products,  and  these  were 
derived  in  large  part  from  a  single  section  within  the  city  limits,  it  may 
be  seen  that  St.  Louis  is  one  of  the  most  important  centers  of  the  clay 
industry. 
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