Memorial concerning Massey's construction of a correct log. Massey first outlines the problems with the existing log in use, quoting from various writers on the subject. He then submits details of the construction of his improved log, outlining how the various errors associated with the old log did not apply to his machine, followed by reports from those who had tried it (with reference to the printed pamphlets on his patent log). The memorial ends with a request from Massey for any reward or financial incentive due.