On 21 March 1857, Dana informed Marx that due to the economic recession only one article a week would be paid for, published or not; the others would be paid for only if published. Marx had sent his articles on Tuesdays and Fridays, but, that October, the "Tribune" discharged all its correspondents in Europe except Marx and B. Taylor, and reduced Marx to a weekly article. Between September and November 1860, only five were published. After a six-month interval, Marx resumed contributions from September 1861 until March 1862, when Dana wrote to inform him that there was no longer space in the "Tribune" for reports from London, due to American domestic affairs.