Rare Boox LONGITUDE. Dert  CLeguin, Etienne]
“XE Abrégé de navigation et d'astronomie appliqué - 794 & des machines. »L52A CAmsterdam?] Gravé par Van-ixem Cca.17947]
dup. pl. 21em. (8vo)
Caption title; imprint from p.44,
Text and plates engraved.
On an instrument invented by the author for measuring longitude at sea.
I. Titles & MB