Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
De tympanitide dissertatio inauguralis medica ... / pro gradu doctoris medicinae ac chirurgiae rite obtinendo d. xiv. Decembris A. MDCCLXXXVII. publice defendet auctor Ioannes Gottlieb Schulz. Public Domain Mark. Source: Wellcome Collection.