Lincoln in Circuit Court wins two cases by default, loses one, and in fourth case, court takes time.Record.

He writes Thomas Lasswell's affidavit, filed July 22, 1840, in Mock v. Lasswell.Herndon-Weik Collection, Library of Congress, Washington, DC.

In afternoon political debate takes place in court room between Lincoln and Jesse B. Thomas. Thomas charges Lincoln with authorship of series of letters criticizing Thomas' political activities that appeared in "Sangamo Journal" signed "A Conservative."Register, 24 July 1840.