Image: John Frederick Clarke
John_Frederick_Clarke.png (278 × 359 pixels, file size: 57 KB, MIME type: image/png)
Description: head shot of John Frederick Clarke
Title: John Frederick Clarke
Credit: Original publication: unknown Immediate source: https://royalsocietypublishing.org/doi/pdf/10.1098/rsbm.2014.0012
Author: unknown
Usage Terms: Fair use of copyrighted material in the context of John Frederick Clarke
License: Fair use
License Link: //en.wikipedia.org/wiki/File:John_Frederick_Clarke.png
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