Lithograph, col: Scene Royal Institution, by 'London XYZ', dedicated ['but not with permission'] to the British Association for the Advancement of Science. - variant issue. - 'No.16' top right. - Imprint added onto title: Printed at A. Crichton's Lithographic Establishment 27 W Register St [Edinburgh, c.1831-1840]. sheet trimmed to 30x24cm. Caricature depiction suggested as of, left, Gerrit Moll, being thanked by John Dalton for anonymous pamphlet defence of English science published 1831, soon after which Dalton was awarded a pension, announced at the annual meeting of the BAAS; artist suggests these events related