Collection of more than 50 engravings, mostly of famous scientists, astronomers, physicists, and other intellectuals, the majority produced during the 19th century, ranging in size from 3.5 x 5 to 12 x 16, with many bearing pre-printed facsimile signatures of the subjects. Among the subjects are Isaac Newton, Jean-Dominique Cassini, Urbain Le Verrier, Emmanuel Liais, Jean Chappe, Pierre-Simon Laplace, Nicolas-Claude Fabri de Peiresc, Jacques Rohault, Edme-Sebastien Jeaurat, Camille Flammarion, Nevil Maskelyne, Nostradamus, Jean-Baptiste Biot, Jean Baptiste Joseph Delambre, Louis Feuillee, Francois Arago, Johann Karl Burckhardt, Jerome Lalande, Pierre Louis Maupertuis, Friedrich Georg Wilhelm von Struve, and others. In overall very good to fine condition, with overall scattered foxing.