\font\tensm=cmr8

\font\elevenrm=cmr10 scaled \magstephalf
\font\elevenbf=cmbx10 scaled \magstephalf
\font\elevenit=cmti10 scaled \magstephalf
\font\elevensm=cmr10
\font\eleventt=cmtt10 scaled \magstephalf

\font\twelverm=cmr10 scaled \magstep1
\font\twelvebf=cmbx10 scaled \magstep1
\font\twelveit=cmti10 scaled \magstep1
\font\twelvesm=cmr10 scaled \magstephalf
\font\twelvett=cmtt10 scaled \magstep1

\font\eightrm=cmr8
\font\eightit=cmr8
\font\eightbf=cmr8
\font\eightsm=cmr6
\font\eighttt=cmtt8

\def\tenpoint{%
  \let\rm=\tenrm \let\it=\tenit \let\bf=\tenbf \let\sm=\tensm
  \tenrm}
\def\elevenpoint{%
  \let\rm=\elevenrm \let\it=\elevenit \let\bf=\elevenbf \let\sm=\elevensm
  \elevenrm}
\def\twelvepoint{%
  \let\rm=\twelverm \let\it=\twelveit \let\bf=\twelvebf \let\sm=\twelvesm
  \twelverm}
\def\eightpoint{%
  \let\rm=\eightrm \let\it=\eightit \let\bf=\eightbf \let\sm=\eightsm
  \eightrm}

\tenpoint
