This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Correspondence Brendel Frederick and Engelmann George Nov BHL. Correspondence Brendel Frederick and Engelmann George Nov Text Illustration Brendel to Engelmann biodiversitylibrary org Brendel Frederick Permission to digitize granted by rights holder Biodiversity Heritage Library Check categories October PDold books