Subejct: Black and white print of a skull that is positioned in place on a stand and is ready to be photographed. This is "photograph no. 4" that appears in "On composite photography as applied to craniology; on measuring the cubic capacity of skulls, memoirs of the National Academy of Sciences; volume 3, 13th memoir" by J.S. Billings and Washington Matthews.
The National Library of Medicine believes this item to be in the public domain. (More information)