PORTRAITS -- "ALBERTUS SEBA, Etzela Oostfrisius Pharmacopoeus Amstelaedamensis (…) aetatis LXVI anno MCCXXXI". (1731). Very fine engr. portrait by J. Houbraken after J.M. Quinckhard. 442 x 303 mm. (A bit foxed along blank margins, but in v.g. condition). -- Added: "HERMANNUS BOERHAAVE. Medicinæ, Botanices, Chemiæ & Collegii practici, (…)". (c. 1725). Engr. portr. after Wandelaar (by J. Houbraken). 345 x 245 mm. -- And: "JOANNES GUILIELMUS WEINMANNUS". (c. 1735). Mezzotint portr., printed in blue ink by J.J. Haid. 320 x 203 mm. -- (3).