BRIGGS, HENRY. Trigonometria Britannica; sive, De doctrina triangulorum libri duo. [8], 110, [271] pages, including half-title. bound with: VLACQ, ADRIAAN. Trigonometria artificialis; sive, Magnus canon triangulorum logarithmicus, ad radium 100000,00000, & ad dena scrupula secunda . . . cui accedunt Henrici Briggii . . . Chiliades logarithmorum viginti. [8], 52, [272], [176] pages, including half-title. Together, 2 volumes in one. Folio, 348x220 mm, contemporary green-dyed vellum boards, spine faded, with top portion partly detached, remnants of thong ties; varying browning, occasionally quite heavy, dampstaining in lower inner corners toward end of second work. Stamps of the Bibliothek des k. k. Bombardier Corps and K. K. Technische Militair Academie Bibliothek on half-title and title of first work. Gouda: Petrus Rammasenius, 1633; 1633