Engraved title-vignette (portraits of Lessing and Mendelssohn): engraved vignette at end (portrait of Jacobi): portrait of Spinoza (plate)
Dedication signed: Friedrich Heinrich Jacobi.
Controversy about Lessing's philosophic views, particularly with respect to Spinoza, including Jacobi's account of a conversation with Lessing in 1780 (p. 19-44)
"Beylagen" (half-title with engraved vignette) include: I. Auszug aus Jordan Bruno von Nola. Von der Ursache, dem Princip und dem Einen (p. 261-306) II. Diokles an Diotime über den Atheismus (p. 307-327) translation of Lettre ... sur l'Athéisme by F. Hemsterhuis.