Columbia subject headings:
Harvard subject headings:
France--Distances, etc.--Early works to 1800.
Geographical positions--France.
Mathematical geography
Princeton subject headings:
France--Distances, etc.--Measurement--Early works to 1800.
France--Surveys--Early works to 1800.
Geodesy--France--Early works to 1800.
Geographical positions--France--Early works to 1800.
Mathematical geography--Early works to 1800.