|←Author Index: Ha||James Hall
- Note on the Eurypteridae of the Devonian and Carboniferous formations of Pennsylvania. Second Geological Survey of Pennsylvania. Report of Progress. Volume PPP (1884)
Articles in Popular Science Monthly
Works by this author published before January 1, 1923 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.