The course of the Mississippi, with the Lakes, Harbours, and Sea Coast are taken from several Spanish and French Drawings, compared with Monr. D'Anville's Carte de Louisiane, published in 1752 as also with P. Lavel, voyage á Louisiane.
Astronomical Observations of Latitude for New Orleans, La Balise, Ft. Conde de la Mobile, Isle Dauphin, and Bay St. Joseph.
Prime Meridians: Ferro and London.
[In Jefferys (T. engraver). A general topography of North America and The West Indies. fol. London, for R. Sayer & T. Jefferys, 1768. no. 66].