Jaures, in addition to his daily journalistic activity, published Les preuves; affaire Dreyfus (1900); Action socialiste (1899); Etudes socialistes (1902), and, with other collaborators, Histoire socialiste (1901), &c.
Zola's object was a prosecution for libel, and a judicial inquiry into the whole affaire, and at the trial, which took place in Paris in February, a fierce flood of light was thrown on the case.
Whatever may be thought of the affaire itself, there can be no question of Zola's superb courage and disinterestedness.