Inside Out LibraryJohannis Gaubii epistola problematica, prima [-tertia]Gaubius, Johannes, active 1695-1720 · 1696 · Amstelaedami : Apud Johannem Wolters · 3 picturesInternet Archive · Wellcome Library · Public domain (published before 1931)
![Picture 1 of 3 from Johannis Gaubii epistola problematica, prima [-tertia] (1696), leaf 5](https://img.insideoutlibrary.com/img/200/ia-b30768986-5-0.webp)
![Picture 2 of 3 from Johannis Gaubii epistola problematica, prima [-tertia] (1696), leaf 40](https://img.insideoutlibrary.com/img/200/ia-b30768986-40-0.webp)
![Picture 3 of 3 from Johannis Gaubii epistola problematica, prima [-tertia] (1696), leaf 42](https://img.insideoutlibrary.com/img/200/ia-b30768986-42-0.webp)