A calculation on the commencement of the millennium : and a short reply to Dr. Horne's pamphlet entituled "Sound argument, dictated by common sense." Together with cursory observations on the "Age of credulity." By Nathaniel Brassey Halhed, M.P. To which is added an original letter from Mr. Brothers, to Philip Stephens, Esq with his answer. A paper is subjoined, pointing out those parts of Mr. Brothers's prophecies that have been already filled. [One line of quotation].