Author: THOMSON, WILLIAM.
Title: Instructions for the use of Sir William Thomson's navigational sounding machine.
Description: Glascow, Printed at the University Press by Robert Maclehose, 1878. 6 pp. Softcover. - Some foxing.Rare 19th century instruction booklet. Only one copy registered on Worldcat (Navy Department Library, Naval History & Heritage Command, Washington Navy Yard, DC, USA).

Keywords: Navigation Navigation Nautical Instruments Scheepvaart / Navigatie(Instrumenten: Dieptemeters). Scheepvaart Navigatie Navigatie Instrumenten Scheepvaart / Navigatie(Instrumenten: Dieptemeters).