Unpublished diagram, 'Diagram of the analysis of the perturbations from the simple logarithmic law [continued]' by George Johnstone Stoney Two diagrams, labelled figures 6-7, which 'exhibit the magnified displacement from the logarithmic curve discussed in section 3 of the memoir; showing that the perturbations of the perissads show here less indication of conforming to the laws than do those of figure 2 [see AP/65/9/3].' Subject: Chemistry / Mathematics 1888