Jean-Baptiste de Silva. Line engraving by G. F. Schmidt, 1742, after H. Rigaud, 1740 Hyacinthe Rigaud
Johann Jacob Roemer, director of the botanic garden at Zurich. Engraving by J.H. Lips Johann Heinrich Lips
Christophorus Daniel Beurer. Line engraving by G. M. Preisler, 1745, after himself Georg Martin Preisler