Dissertatio physico-mathematica observationes hypsometricas ope barometri institutas computandi methodum sistens; cujus part. III, venia ampliss. facultatis philosoph. in Imperiali Academia Aboënsi, publice examinandam modeste proponunt mag. Nathan. Gerh. af Schultén, matheseos [et] physices adjunctus, et Jacobus Syrenius, stip. publ., Borea-Fenno. In audit. philos. die XVIII Nov. MDCCCXVIII. h. a. m. s.1.1.1818