Marxists Internet Archive — Marx’s outgoing and jointly authored letters in the four chronological correspondence indexes (consulted 2026-10-26)
Each inventory follows the numbering of an identified edition. “Complete” refers to that edition and document type; it does not claim to cover every surviving document by the philosopher.
Complete inventory for this edition · 548 indexed entries548 distinct letters by Marx or jointly authored with him, listed in the four consulted chronological indexes; every included link was checked. Two index errors were excluded: the 1835 school essay and a military article by Engels. Identifiers reproduce source paths, not MEGA numbers. Dates are not reconstructed from filenames. This inventory is complete for this verified digital selection, not for all letters preserved in MEGA or for incoming correspondence.
Reference editionnew tab| Reference | Document | Composition or publication / Recipient |
|---|---|---|
| 1837-pre/letters/37_11_10.htm | Letter to Heinrich Marxnew tab | Heinrich Marx |
| 1841/letters/41_04_06.htm | Letter to Carl Friedrich Bachmannew tab | Carl Friedrich Bachman |
| 1841/letters/41_04_07.htm | Letter to Oscar Wolfnew tab | Oscar Wolf |
| 1841/letters/41_08_25.htm | Letter to Dagobert Oppenheimnew tab | Dagobert Oppenheim |
| 1842/letters/42_02_10.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1842/letters/42_03_05.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1842/letters/42_03_20.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1842/letters/42_04_23.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1842/letters/42_07_09.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1842/letters/42_11_30.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1843/letters/43_01_25.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1843/letters/43_03.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1843/letters/43_03_13.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1843/letters/43_05.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1843/letters/43_09.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1844/df-jahrbucher/feuer.htm | Letter to Ludwig Feuerbachnew tab | Ludwig Feuerbach |
| 1844/df-jahrbucher/frobel.htm | Letter to Julius Frobelnew tab | Julius Frobel |
| 1843/letters/43_12_10.htm | Letter to the Démocratie Pacifiquenew tab | the Démocratie Pacifique |
| 1844/df-jahrbucher/closure.htm | Letter to the Allegemeine Zeitung (Augsburg). Apr 14 1844new tab | the Allegemeine Zeitung (Augsburg). Apr 14 1844 |
| 1844/letters/44_08_11.htm | Letter to Ludwig Feuerbachnew tab | Ludwig Feuerbach |
| 1844/letters/44_09.htm | Letter to Heinrich Börnstein. Autumn 1844new tab | Heinrich Börnstein. Autumn 1844 |
| 1844/letters/44_10_07.htm | Letter to Julius Campenew tab | Julius Campe |
| 1844/letters/44_11.htm | Letter to Heinrich Börnstein. Not later than November 1844new tab | Heinrich Börnstein. Not later than November 1844 |
| 1844/letters/44_12_30.htm | Letter to Heinrich Börnsteinnew tab | Heinrich Börnstein |
| 1845/letters/45_01_15.htm | Letter to Arnold Rugenew tab | Arnold Ruge |
| 1845/letters/45_02_02.htm | Letter to Heinrich Heinenew tab | Heinrich Heine |
| 1845/letters/45_03_24.htm | Letter to Heinrich Heinenew tab | Heinrich Heine |
| 1845/letters/45_05_09.htm | Letter to Zacharius Lowenthalnew tab | Zacharius Lowenthal |
| 1846/letters/46_04_04.htm | Letter to Heinrich Heine. Beginning Apr 1846new tab | Heinrich Heine. Beginning Apr 1846 |
| 1846/letters/46_05_05.htm | Letter to Pierre-Joseph Proudhonnew tab | Pierre-Joseph Proudhon |
| 1846/letters/46_05_07.htm | Letter to Karl Ludwig Bernaysnew tab | Karl Ludwig Bernays |
| 1846/letters/46_05_14.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1846/letters/46_08_01.htm | Letter to Carl Friedrich Julius Leskenew tab | Carl Friedrich Julius Leske |
| 1846/letters/46_08_21.htm | Letter to Karl Ludwig Bernaysnew tab | Karl Ludwig Bernays |
| 1846/letters/46_12_28.htm | Letter to Pavel Vasilyevich Annenkovnew tab | Pavel Vasilyevich Annenkov |
| 1847/letters/47_03_07.htm | Letter to Roland Daniels. Mar 7 1847new tab | Roland Daniels. Mar 7 1847 |
| 1847/letters/47_05_15.htm | Letter to Engelsnew tab | Engels |
| 1847/letters/47_07_27.htm | Letter to Georg Herwegh. Jul 27 1847new tab | Georg Herwegh. Jul 27 1847 |
| 1847/letters/47_08_08.htm | Letter to Georg Herweghnew tab | Georg Herwegh |
| 1847/letters/47_09_02.htm | Letter to Moses Hessnew tab | Moses Hess |
| 1847/letters/47_09_29.htm | Letter to Werner von Veltheimnew tab | Werner von Veltheim |
| 1847/letters/47_12_09.htm | Letter to Pavel Vasilyevich Annenkovnew tab | Pavel Vasilyevich Annenkov |
| 1848/letters/48_03_12.htm | Letter to Engels. Between 7 and 12 March 1848new tab | Engels. Between 7 and 12 March 1848 |
| 1848/letters/48_03_16.htm | Letter to Engelsnew tab | Engels |
| 1848/letters/48_04_05.htm | Letter to Etienne Cabetnew tab | Etienne Cabet |
| 1848/letters/48_04_24.htm | Letter to Engelsnew tab | Engels |
| 1848/05/31a.htm | Letter to L’Albanew tab | L’Alba |
| 1848/letters/48_10_30.htm | Letter to Engelsnew tab | Engels |
| 1848/letters/48_11_07.htm | Letter to Engels. First half of November 1848new tab | Engels. First half of November 1848 |
| 1848/letters/48_11_13.htm | Letter to Ferdinand Lassallenew tab | Ferdinand Lassalle |
| 1848/letters/48_11_29.htm | Letter to Engelsnew tab | Engels |
| 1848/letters/48_12_05.htm | Letter to Eduard von Muller-Telleringnew tab | Eduard von Muller-Tellering |
| 1848/letters/48_12_29.htm | Letter to Wilhelm Stiebernew tab | Wilhelm Stieber |
| 1849/letters/49_01_15.htm | Letter to Eduard von Muller-Telleringnew tab | Eduard von Muller-Tellering |
| 1849/letters/49_02_03.htm | Letter to Ernst Dronkenew tab | Ernst Dronke |
| 1849/letters/49_03_03.htm | Letter to Colonel Engelsnew tab | Colonel Engels |
| 1849/letters/49_04_15a.htm | Letter to Colonel Engels. Before 15 April 1849new tab | Colonel Engels. Before 15 April 1849 |
| 1849/letters/49_04_15.htm | Letter to Engels. Before 15 April 1849new tab | Engels. Before 15 April 1849 |
| 1849/letters/49_04_23.htm | Letter to Engelsnew tab | Engels |
| 1849/letters/49_05_06.htm | Letter to Hermann Brehmernew tab | Hermann Brehmer |
| 1849/letters/49_05_06a.htm | Letter to Eduard von Muller-Telleringnew tab | Eduard von Muller-Tellering |
| 1849/letters/49_05_06b.htm | Letter to Andreas Stifftnew tab | Andreas Stifft |
| 1849/letters/49_06_01.htm | Letter to Joseph Weydemeyer. l June 1849new tab | Joseph Weydemeyer. l June 1849 |
| 1849/letters/49_06_07.htm | Letter to Engelsnew tab | Engels |
| 1849/letters/49_07_13.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1849/letters/49_07_14.htm | Letter to Caroline Scholernew tab | Caroline Scholer |
| 1849/letters/49_07_31.htm | Letter to Ferdinand Freiligrathnew tab | Ferdinand Freiligrath |
| 1849/letters/49_07_31a.htm | Letter to Engelsnew tab | Engels |
| 1849/letters/49_07_31b.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1849/letters/49_08_15.htm | Letter to Joseph Weydemeyer. Mid-August 1849new tab | Joseph Weydemeyer. Mid-August 1849 |
| 1849/letters/49_08_17.htm | Letter to Engelsnew tab | Engels |
| 1849/letters/49_08_23.htm | Letter to Engelsnew tab | Engels |
| 1849/letters/49_09_05.htm | Letter to Ferdinand Freiligrathnew tab | Ferdinand Freiligrath |
| 1849/letters/49_11_30.htm | Letter to Louis Bauernew tab | Louis Bauer |
| 1849/letters/49_12_19.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1850/letters/50_03_12.htm | Letter to Eduard von Muller-Telleringnew tab | Eduard von Muller-Tellering |
| 1850/letters/50_11_19.htm | Letter to Engelsnew tab | Engels |
| 1850/letters/50_11_23.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_01_07.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_02_03.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_02_10.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_02_11.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_02_23.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_03_31.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_04_02.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_06_16.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_06_27.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1851/letters/51_07_13.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_08_08.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_08_14.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_09_13.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_09_23.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_10_13.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_10_16.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1851/letters/51_11_24.htm | Letter to Engelsnew tab | Engels |
| 1851/letters/51_12_27.htm | Letter to Ferdinand Freiligrathnew tab | Ferdinand Freiligrath |
| 1852/letters/52_01_16.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1852/letters/52_01_24.htm | Letter to Engelsnew tab | Engels |
| 1852/letters/52_01_30.htm | Letter to Joseph Weydemeyernew tab | Joseph Weydemeyer |
| 1852/letters/52_02_18.htm | Letter to Engelsnew tab | Engels |