We  are  now  supposed  to  have  a  slip  that  adheres  well  and
is  of  the  proper  hardness,  but  nothing  has  been  said  about  Its
color.  The  color  of  the  original  slip  given  would  probably  be  a
cream  white.  Staining  with  blue  stain  would  give  it  a  wliiter
appearance,  but,  at  the  same  time,  possibly  a  slightly  greenish
tint.  If  better  color  is  desired,  it  might  be  obtained  by  using
more  grit  in  body,  reducing  the  shrinkage.  This  would  admit
of  less  ball  clay  in  slip,  or  bricks  might  be  slipped  after  they
are  thoroughly  dry.  In  this  case,  much  less  ball  clay,  possibly
none,  would  be  used,  and  unless  the  heat  is  high  an  artificial
flux  might  have  to  be  resorted  to.  Much  can  be  done  to  Im-
prove the  color  by  using  a  good  white  enamel  or  semi-enamel
over  the  slip.  With  heavy  shrinking,  low  heat  clays,  a  good
white  slip  is  difficult  to  obtain,  and  semi-enamels  must  be  used.
