My translations from Latin:

• Adam Adamany Kochański, Mensurae universales magnitudinum ac temporum, original Latin text from Acta Eruditorum, Lipsiae, May 1687, p. 259--266, with English tranlation and annotations.
• Adam Adamany Kochański, Three mathematical papers, original Latin text with English translation and annotations, Antiquitates Mathematicae, 9:31--65, 2015
• Adam Adamany Kochański, Solutio Theorematum Ab illustri Viro in Actis hujus Anni Mense Januario, pag. 28. propositorum, original Latin text from Acta Eruditorum, Lipsiae 1682, pp. 230-236, with English tranlation and annotations.
• Adam Adamany Kochański, Observationes Cyclometricae ad facilitandam Praxin accomodatae, original Latin text from Acta Eruditorum 4, 394-396 (1685), with English tranlation and annotations.
• Location prvilege of Władysław IV given to Wojciech Nowobilski, Latin text with Polish translation and explanatory note. Repository of Centre for Open Science pages 1--6, 2021. art. no. 20378.

Scripta Mathematicae Polono-Latinae - links to various works in Latin by Polish mathematicians

• Copernicus Theorem, Latin text with parallel English translation by E. Rosen
• Copernicus Theorem, Latin text with parallel Polish translation by S. Strabski
• Witelo, Perspectiva, c. 1270. Page images (modern reprint) at Kujawsko-Pomorska Biblioteka Cyfrowa
• Benedykt Herbest, Arithmetica linearis, 1561. Page images at Wielkopolska Biblioteka Cyfrowa
• Jan z Łańcuta, Algoritmus linearis, 1562. Page images at Dolnośląska Biblioteka Cyfrowa
• Jan Brożek, De numeris perfectis disceptationes duae, 1638. Page images by Google Books
• Jan Toński, Arithmetica vulgaris et trigonometria rectilineorum, 1640. Page images at MDZ/BSB (incomplete)
• Maciej Głoskowski, Geometria peregrinans, 1643. Page images at Śląska Biblioteka Cyfrowa
• Stanisław Solski, Praxis nova et expeditissima mensurandi geometrice, Cracoviae : ex officina Francisci Cezary, 1688. Page images at e-rara.ch