Gently warm the greased or spotted part of the book or paper, and then
press upon it pieces of blotting-paper, one after another, so as to
absorb as much of the grease as possible. Have ready some fine clear
essential oil of turpentine heated almost to a boiling state, warm the
greased leaf a little, and then, with a soft clean brush, apply the
heated turpentine to both sides of the spotted part. By repeating this
application, the grease will be extracted. Lastly, with another brush
dipped in rectified spirit of wine, go over the place, and the grease
will no longer appear, neither will the paper be discoloured.