I have Gene Laughter's book and most of the supplies. I made my prints and am ready to bleach. I thought I ordered ink but only found out I did something wrong in ordering online and the order did not go through so no ink. However, I have a local guy who has graphic litho ink in black and sold me one pound for a nominal amount. My question is will it work as the suggested supplier? Is there a difference? It looks like black molasses.