Two Elzevier editions.

Contemp. overl. vellum, flat spines.

1. Barlaeus, Caspar - Poematum editio nova [corr. enl. ed.]. Leiden, (B. & A.) Elzevier, 1631. 12mo: [16]-511 pp. (toned, marginal soiling, blank bottom part of title torn off, vellum warping, endpapers lifted). Good copy. 2nd ed. (1st 1628) of the collected verse of Barlaeus (1584-1648). Engr. title. Ref. Willems 344. - STCN. - 2. Principum et illustrium virorum epistolae [...]. Amsterdam, L. Elzevier, 1644. 12mo: [8]-432-[16] pp. Very good copy. Repr. of a popular selectio of letters from famous people (and Italian humanists), 1st publ. in Venice. Engr. title. Ref. Willems 1014. - STCN. Prov. Ms. entry Jac. de Richebourg, 1715 (at top of *2r).
Joined: Crucius, Jacobus - Mercurius sive Epistolarum opus [...] [enl. ed.]. Amsterdam, Aeg. Valckenier, 1661. 12mo: [16]-710 [= 730]-[17] pp. (toned). Contemp. overl. vellum. Repr. of a popular collection of letters (1st publ. 1633) by the Delft preacher and school rector Crucius (de la Croix, 1579-1655). Engr. title and full-page engr. portrait. Ref. STCN. (3 vol.)