This searches the indexes to the Transactions of the Historic Society of Lancashire and Cheshire.
On the importance of testing chronometers before they are used at sea, with examples to show how their most common faults may be detectedAuthor: Hartnup, John
Volume: 9 (1856-1857) Pages: 11-20, tables. View Volume
On the method of testing marine meteorological instruments recently introduced at Liverpool ObservatoryAuthor: Hartnup, John
Volume: 8 (1855-1856) Pages: 109-114, View Volume