Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
A summary of statistics relating to vaccination and smallpox : as observed in the cases admitted to the City of Glasgow Smallpox Hospital, Belvidere, between 10th April, 1900, and 30th June, 1901 / by R.S. Thomson and Robert Fullarton. Public Domain Mark. Source: Wellcome Collection.