Y		y
References of "y" (Variables in Drawings)

y	Folio 77 v,d01a
	Folio 105 r,d01b
	Folio 106 v,d01a
	Folio 122 v,d01a
	Folio 130 v,d01a
	Folio 166 r,d01a
	Folio 187 r,d03a