Sources:
- Stars Whose Distances Are Best Known - Agnes Giberne (1898)
- Le Leopard 00152 - Georges-Louis Leclerc Buffon (1754)
- Fungi collected in Shropshire and other neighborhoods pg 33 and 48 - M.F. Lewis (1860-1902)
- Acanthus mollis - Karl Blossfeldt (1928)
- Plantstudie No. 36 - Karl Blossfeldt (1928)
- Surf on Rocks - William Trost Richards (1890s)
- High Dive 11 One and a half somersault forwards - Erik Bergvall (ed.) and Edward Adams-Ray (trans.) (1913)
- Landscape - Song Nian (1898)