A set of printed catalogues and one article bound into a volume:

'List of Reproductions of Celestial Photographs Published by the Royal Astronomical Society', two copies, one of which is heavily annotated, c. 1920.

'Catalogue of Reproductions of Celestial Photographs Published by the Royal Astronomical Society', two annotated copies (London, 1925).

'Catalogue of Reproductions of Celestial Photographs Published by the Royal Astronomical Society', including annotations (London, 1933).

'An Illustrated Catalogue of Astronomical Photographs, including Lantern Slides, Transparencies, and Prints from Negatives Made at the Yerkes Observatory' (Chicago, 1923).

'A Selected List of Lick Observatory Negatives from which Lantern Slides or Prints can be Supplied', including annotations (Lick Observatory, 1929).

George Higgs, 'The Photographic Normal Solar Spectrum', 6 pages, dated Liverpool, 1896.

Several loose items found in the volume, including notes and correspondence, c. 1945-c. 1949, are in an accompanying envelope.