The lunar method shorten'd in calculation & improv'd Longitude precepts invented by S. Dunn; ...
Dunn, Samuel,-1794.
[London?] : Published according to Act of Parliament March 27. 1788 by S. Dunn,
1788.
Drop-head title.
Engraved throughout.
Imprint from foot of first leaf; the third and fourth leaves are dated April 30. 1788; the fifth leaf is undated.
ESTC