An explanation of a new construction and improvement of the sea octant and sextant, containing, a ... method of adjusting and rectifying those instruments for use both at sea and land .... Illustrated by four copper-plates. By B. Martin.

Author/creator Martin, Benjamin
Format Electronic
Publication InfoLondon : printed for the author, [1775?]
Description2 unnumbered pages, 37, 1 unnumbered page, fold.plates ; 8⁰.
Supplemental ContentFull text online

General note"The public are indebted solely to my son, J.L. Martin, for the invention .." (Preface); he was awarded patent no. 1088 in 1774.
General noteReproduction of original from the British Library.
References English Short Title Catalog, ESTCT25321.
Reproduction noteJoyner- Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. Available via the World Wide Web. Access limited by licensing agreements

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