Unpublished manuscript, 'New method to find the course, distance, difference of latitude and departure, with the description and use of the quadrant' by John Phipps Two title pages, one with stylised fonts, followed by a paper by Phipps regarding a navigational method for finding the course, distance, and differences of latitude and departure of a ship using a quadrant of a mariner's compass. Phipps provides two examples with calculations to illustrate his method. Subject: Geodesy Written by Phipps in Staindrop, near Darlington, Durham [England]. [early 19th century]