The ducal house of Saxe-Gotha-Altenburg (1640-1825) was one of the states maintaining the Ernestine University in Jena. Jena dissertations were therefore collected on a large scale, although this collection is not complete.
The dissertations run through the entire historical printed collection of the Gotha Research Library. They come not only from Jena, but also from the other, mainly Protestant universities in central and northern Germany. The more than 60,000 titles essentially date from the 17th to the 19th century. As a rule, the language is Latin. The shelf mark group "Diss" is divided into 18 subgroups according to subject. The most extensive subject areas are theology (Diss. theol), law (Diss. jur), medicine (Diss. med), philosophy (Diss. phil) and history (Diss. hist). The more than 500 numismatic dissertations that were important for the Gotha dukes' significant coin collection are placed in the numismatic literature collection.
The dissertations of the 16th and 17th centuries are fully recorded online (including VD16 and VD17); the dissertations of the 18th century are only partially complete. The dissertations not yet recorded online must be researched via the Alphabetical Catalogue of the Ducal Collection and the Alphabetical Dissertations Catalogue.