
Adolf Friedrich von Buch, August Boeckh, Adelbert von Chamisso, Helmina von Chézy,
Jean Albert Euler , Immanuel Hermann von Fichte, E.T.A. Hoffmann, Adelheid Reinbold, Dorothea Tieck, Ludwig Tieck

Letters
- Letter from John Albert Euler to Jean Henri Samuel Formey
(Sankt Petersburg, 5 december 1761) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 15 August 1766) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 21 novembre 1766) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 25 décembre 1766) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 2 January 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 7 February 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 1 March 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, Avril 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 16 April 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 20 April 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 20 April 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 1 June 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 14 August 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 21 August 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 31 August 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 7 septembre 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 21 October 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 2 novembre 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 3 Decembre 1767) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 28 January 1768) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 22 February 1768) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 14 March 1768) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 16 April 1768) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 27 May 1768) - Letter from John Albert Euler to Jean Henri Samuel Formey
(Saint Petersburg, 1767 ??)