Improvements in the methods now in use for taking the longitude of a ship at sea. Invented and described by Samuel Dunn,...
Series: Eighteenth century -- reel 1470, no. 07.
Publisher: Printed for the author, no. 1 Boar's-Head Court, Fleet-Street
Published: 1793
Place of publication: [London]
Language: eng
Format: Microform
Number of pages: 40
Notes: Horizontal chain lines.

Without gathering C.

Sig B4v (p.16) has the word 'End' at the foot, and D1r (unpaginated, but presumably intended to form p.25) has an imprint at the foot: 'Printed for the author. M.DCC.XCII.' - The last page ends: 'Here ends sheet II. supplementary.'.

Microfilm. Woodbridge, CT Research Publications, Inc., 1986. 1 reel ; 35mm. (The Eighteenth Century ; reel 1470, no. 07).