Sir Frank Douglas MacKinnon (1871–1946) was a prominent lawyer, judge and writer. He is notable for being the only High Court judge appointed during the First Labour Government. In this volume, which was originally published in 1940, Mackinnon describes his Circuit experiences between 1924 and 1937. The text was compiled from the journals he kept during that time, omitting more personal passages. This is a highly readable book that will be of value to anyone with an interest in British legal history.