A history of Infusoria : including the Dismidiaceoe and Diatomaceoe, British and foreign

License information

You can use this work for any purpose without restriction under copyright law.

Public Domain Mark (PDM) terms and conditions https://creativecommons.org/publicdomain/mark/1.0

Credit

A history of Infusoria : including the Dismidiaceoe and Diatomaceoe, British and foreign. Public Domain Mark