Rigobert Bonne; 1729-1793.

Bonne, a trained mathematician, was appointed Hydrographer to the King.
He took over the responsibility of the French Hydrographic Institute ("Dépôt de la Marine") after the death of Bellin in 1772. This position enabled Bonne to unparallel access to prime mapping data, which he could use successfully for his own private business interests.
He followed in the steps of the French school of cartographic minutiae and geographic accuracy. As such he produced, often in collaboration with other mapmakers, a large number of excellent sea charts.
His name is generally associated with a type of equal area projection he often used after 1757.
Of note, his participation (with Janvier and Rizzi-Zannoni) to Jean Lattré's 1762 "Atlas Moderne". But he is most well known for the wealth of maps he prepared for Guillaume Thomas François Raynal's "Atlas de toutes les parties connues du globe terrestre" (1780), and also for Nicolas Desmaret*'s "Atlas Encyclopédique" (1787, re-issued in 1827).

* Desmaret: of engineering fame for the first recorded design of a tunnel between France and England in 1751. nd Whittle.

Les isles Philippines, celle de Formose, et le sud de la chine,..

This map (12 ½" X 8 5/16") was originally prepared for the 1780 of "Atlas de toutes les parties connues du globe terrestre".
On the top right two insets show: the Mariana archipelago, and separately its main island of Guam. The map shows all the territories around the south China sea including Taiwan, the Philippines, parts of Borneo and of the Malaysian peninsula, the whole Indo-China and the south of China.
Notice the arrows standing for the dominant monsoon winds; southwestward from October to January, and northeastward from April till August.
Longitudes are given east of Ferro on top, and east of Paris at the bottom.
No text on verso.