The Theory and Practice of Finding the Longitude at Sea Or Land: to which are Added, Various Methods of Determining the Latitude of a Place, and Variation of the Compass ; with New Tables. By Andrew MacKay, LL. D.F.R.S. Edin. Honorary Member of the Literary and Philosophical Society of Newcastle-Upon-Tyne and Mathematical Examiner to the Honourable the Corporation of Trinity-House, the Honourable the East India Company, Christ's Hospital, Etc. In Two Volumes
