Johannis Gaubii epistola problematica, prima [-tertia]
By: ad ... Fredericum Ruyschium
Contributors: Ruysch, Frederik, 1638-1731
Publisher: Apud Johannem Wolters
Published: 1696
Place of publication: Amstelaedami
Language: lat
Number of pages: 32
Notes: Each Epistola is followed by the answer of Frederik Ruysch.

Problemata secunda [-tertia] have half titles.