John Harrison (English Wikipedia)

William E. Carter. "The British Longitude Act Reconsidered". American Scientist. Archived from the original on 20 February 2012. Retrieved 19 April 2015.

anthonygrayclocks.com

A Chronology of Clocks Archived 18 October 2007 at the Wayback Machine

archive.org

Sobel, Dava (1995). Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. New York: Penguin. ISBN 0-14-025879-5.
In 1767, the Board of Longitude published a detailed description of Harrison's H4 watch: The Commissioners of Longitude (1767). The Principles of Mr. Harrison's Time-Keeper, with Plates of the Same. London, England: W. Richardson and S. Clark.
Landes, David S. (1983). Revolution in Time. Cambridge, Massachusetts: Belknap Press of Harvard University Press. ISBN 0-674-76800-0.

basbwe.net

"An Interview with Peter Graham" (PDF) (Interview). BASBWE. 2002.

bbc.co.uk

"John Harrison: Timekeeper to Nostell and the world!". BBC Bradford and West Yorkshire. BBC. 8 April 2009. Retrieved 10 February 2012.
"Hooky Street: Watches & Clocks". BBC. Retrieved 13 April 2019.

news.bbc.co.uk

"100 great British heroes". BBC. 21 August 2002. Retrieved 10 February 2012.

books.google.com

The principles of Mr Harrison's time-keeper

britannica.com

"John Harrison | British horologist | Britannica". www.britannica.com. Retrieved 11 December 2021.

captaincooksociety.com

Burkholder, Ruth (1983). "Solving the Problem of Longitude". Cook's Log. 6 (4). Captain Cook Society: 222–224.

fer3.com

Gould, Rupert T. (1923). The Marine Chronometer. Its History and Development (PDF). London: J. D. Potter. ISBN 0-907462-05-7.

fhs.ch

Federation of the Swiss Watch Industry Archived 23 June 2009 at the Wayback Machine

google.com

"John Harrison's 325th Birthday". www.google.com.

grimsbytelegraph.co.uk

Waller, Jamie (31 March 2020). "Statue of North Lincolnshire inventor John Harrison now on display in his home village". Grimsby Telegraph. Retrieved 9 December 2021.

harvard.edu

ui.adsabs.harvard.edu

Quill, Humphrey (1966). John Harrison: the man who found longitud. London: Baker. p. 233. Bibcode:1966jhmw.book.....Q.

hsn161.com

Harrison, John (1775). A Description concerning such Mechanism as will afford a nice, or true Mensuration of Time; together with Some Account of the Attempts for the Discovery of the Longitude by the Moon; and also An Account of the Discovery of the Scale of Musick (PDF). London.

independent.co.uk

Sommerlad, Joe (3 April 2018). "Who was the British clockmaker who completely revolutionised navigation?". The Independent. Retrieved 31 August 2023.

lucytune.com

"LucyTuning*LucyScaleDevelopments*LucyTuned Lullabies*Pi tuning*John Longitude Harrison". Lucytune.com. Retrieved 28 September 2012.

modernistbritain.co.uk

"Summit House, London". Modernist Britain. Retrieved 3 April 2018. On the corner of Dane Street there is a Blue Plaque dedicated to John Harrison (1693–1776)

movie-dude.com

nmm.ac.uk

"Harrison's Marine timekeeper (H1)". National Maritime Museum. Retrieved 25 February 2008.
"Harrison's Marine timekeeper (H2)". National Maritime Museum. Retrieved 25 February 2008.
"Harrison's Marine timekeeper (H3)". National Maritime Museum. Retrieved 25 February 2008.

northernrail.org

"Northern Honours Inventor John Harrison". northernrail.org/news. 27 April 2014. Retrieved 6 March 2015.

rmg.co.uk

collections.rmg.co.uk

"Harrison's Marine timekeeper (H4)". National Maritime Museum. Retrieved 25 February 2008.

scunthorpetelegraph.co.uk

"Train naming tribute to world famous inventor John Harrison". Scunthorpe Telegraph. 26 April 2014. Retrieved 6 March 2015.

theguardian.com

McKie, Robin (18 April 2015). "Clockmaker John Harrison vindicated 250 years after 'absurd' claims". The Observer. p. 7. Retrieved 23 April 2015.

watchesbysjx.com

Lake, Tim. "In-Depth: The Microscopic Magic of H4, Harrison's First Sea Watch. A heart of diamond". WatchesbySJX. Retrieved 2 September 2019.

web.archive.org

William E. Carter. "The British Longitude Act Reconsidered". American Scientist. Archived from the original on 20 February 2012. Retrieved 19 April 2015.
Federation of the Swiss Watch Industry Archived 23 June 2009 at the Wayback Machine
A Chronology of Clocks Archived 18 October 2007 at the Wayback Machine

worldcat.org

Clowes, William Laird (1898). The Royal Navy: A History From the Earliest Times to the Present. Vol. 3. London: Sampson, Low, Marston and Company. OCLC 645627800.