"The People's Sunday Meeting," Boston Investigator, 18, 43 (February 28, 1849), 3.
People's Sunday Meeting:—The lectures of Mr. Warren before this Society were finished on Sunday last, and at his request will be made the subject of discussion next Sunday. The public are invited to attend and take part in the debate. The meeting is free, and fifteen minutes are allowed each speaker.
A pamphlet, now in press, explaining minutely the theory upon which Mr. Warren has been lecturing, will be offered for sale at the meeting next Sunday.