Title: D.D. specimen academicum de refractione luminis in superficiebus planis quod consensu amplissimae facultaties philosophicae in Regia Academ. Gothor. Carolina eruditorum examini modeste submittunt auctor Mag. Olof Nenzelius ... atque respondens Daniel Ahlstrand ... in audit. Carol. Maj. an diem  XXVI Febr. MDCCLXIII
Subjects: Refraction, Early works to 1800