This wooden box contains approximately 77 miscellaneous lantern slides that depict astronomical phenomena. The slides are mostly labelled "BAA" (British Astronomical Association) and, among these, several are labelled as being of the collections of individuals who were BAA members and frequent lecturers: Rev. E. Ledger, Sir R.S. Ball, Augustus Wheeler (whose name and address is printed inside the bos), E.W. Maunder and Mr J.A. Hardcastle. The slides were part of the BAA's own collection for some time before being acquired by a private individual. Several slides are hand-drawn or hand-written diagrams or data produced during a lecture, while the rest include representations of the moon, comets, meteors, planets and eclipses, and reproductions of images from printed books, photographs and contemporary cartoons. One slide shows a cartoon called 'Searching for Halley's Comet' by W. Heath Robinson, 1910, there are two representations of Mars and the Martian 'canals', and a late-19th-century print of the Royal Observatory, Greenwich. See also AST1121.