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.
Hoffman August Wilhelm von. Picture of the German chemist August Wilhelm von Hofmann Between pages and of Moore's History of Chemistry McGrawHill New York acs org author PDold August Wilhelm von Hofmann
Page 2023 Free-images.com. All images are Public Domain