\font\SILmfont={[/usr/local/texlive/texmf-local/fonts/opentype/hoefler/mercurytext/MercuryTextG1-BoldItalic-Pro.otf]:+clig;+liga;+tlig;+ss01}\SILmfont
\def\SILmfontname{MercuryTextG1-BoldItalic; Stylistic Set 1}%
