I had been assigned to write a prayer-book on stone for the Schul-fond. It was mostly in a style of writing in which I was least expert. When I wrote music notes, our method, proved best by experience, had been to write the entire sheet in reverse on the stone with lead pencil to serve as pattern. This was mostly Herr Gleissner's work, and being a musician he had achieved great perfection. For me this preparatory work was far less agreeable than the final execution with the stone-ink. Therefore, as ever in my life, when a difficulty or a burden was before me, I studied for some way to make it easier for me. Previously I had found that if one wrote on paper with good English lead pencils, then moistened the paper, laid it on a polished stone and passed it through a powerful press, a good impression was the result. I had used the method on various occasions. I wished that I possessed an ink that could be used the same way. Trials showed that fine red chalk needed merely to be rubbed down gently in a solution of gum, and that even the ordinary writing-ink of nut gall and vitriol of iron would serve when mixed with a little sugar. But this did not satisfy my ambition, which always demanded the best and most perfect. The gum in one and the vitriol in the other did not agree well with the stone-ink. In addition, the impression often squashed. Therefore I tried a mixture in water of linseed oil, soap, and lampblack which met my demands better. I had a music-writer write notes correctly on note-paper with this ink, printed it on the stone, and thus had an accurate pattern, which was at the same time reversed, as was necessary.