This is a study for Hill?s oil painting of the same subject. It shows a scene from the Disruption of 1843. In this sketch Dr. Chalmers is preaching to a group of ministers, but the finished painting shows him signing the Act of Separation. Hill used calotypes along with pen and ink studies in the planning of the painting. He originally intended to work on the painting for three years, but by 1846, the painting had doubled in size. In the end, it took Hill twenty-three years to finish and it dominated the rest of his life. The painting now hangs in the offices of the Free Church of Scotland on the Mound.