TY  - BOOK
AU  - GURNEY Alan
TI  - Compass: a story of exploration and innovation 
SN  - 0393050734 (hbk) :
PY  - 2005///
CY  - New York
PB  - W W Norton, 
KW  - NAVIGATION AIDS
KW  - MAGNETIC COMPASS
KW  - COMPASS
N2  - The magnetic compass remains one the fundamental pieces of marine equipment. This is a fascinating account of the history of the development of the modern compass. Although most detail comes from European sources it is noted that the principle of magnetism to indicate direction was understood in China, perhaps centuries before any Western written accounts
ER  -