Rudolf Friedrich Alfred Clebsch (19. 1. 1833 – 7. 11. 1872).

Originally published in German: “Ueber die Integration der hydrodynamischen Gleichungen” in Journal für die reine und angewandte Mathematik, vol. 56, pp. 1–10, 1859.

Translators: David Delphenich (Neo-Classical Physics, 1830 OH-725, Spring Valley, Ohio, USA), Uriel Frisch${}^a$ (Université Côte d’Azur, OCA, Nice, France) and Gérard Grimberg (Instituto de Matematica, (PEMAT), UFRJ, Rio de Janeiro, Brazil).

Thanks: It is our pleasure to thank Prof. Wolf Beiglböck (Heidelberg, Germany) who helped us, successfully as Editor and as critical reader, with the translation of a particularly difficult mid-19th century German text

Copyright comment corrected publication 2021