\defaultfontfeatures[NewCM10-Book]
   {
    Extension      = .otf ,
    SizeFeatures={%
                  {Size=-8, Font=NewCM08-Book,
      		  	    ItalicFont=NewCM08-BookItalic,%
      			    BoldFont=NewCM10-Bold,%
      			    BoldItalicFont=NewCM10-BoldItalic,%
      			    SlantedFont=NewCM08-Book,%
      			    BoldSlantedFont=NewCM10-Bold,%
      			    SmallCapsFeatures={Numbers=OldStyle}},
		   {Size=8, Font=NewCM08-Book,
      		   	    ItalicFont=NewCM08-BookItalic,%
      			    BoldFont=NewCM10-Bold,%
      			    BoldItalicFont=NewCM10-BoldItalic,%
      			    SlantedFont=NewCM08-Book,%
      			    BoldSlantedFont=NewCM10-Bold,%
      			    SmallCapsFeatures={Numbers=OldStyle}},
		 {Size= 9-, Font = NewCM10-Book,
      		 	    ItalicFont=NewCM10-BookItalic,%
      			    BoldFont=NewCM10-Bold,%
      			    BoldItalicFont=NewCM10-BoldItalic,%
      			    SlantedFont=NewCM10-Book,%
      			    BoldSlantedFont=NewCM10-Bold,%
      			    SmallCapsFeatures={Numbers=OldStyle}}%
	}}