References for John Hadley

1. Biography in Encyclopaedia Britannica.
   http://www.britannica.com/eb/article-9038742/John-Hadley Biography (Oxford, 2004).

Articles:

2. E G Forbes, The scientific and technical bases for longitude determination at sea, NTM Schr. Geschichte Natur. Tech. Medizin 16 (1) (1979), 113-118.
3. E G Forbes, Die Entwicklung der Navigationswissenschaft im 18. Jahrhundert, RETE (4) 2 (1975), 307-321.
4. P Müürsepp and R Preem, Die ersten Versuche zur Deutung der Naturerscheinungen durch die Erdrotation, in Theoria cum praxi: on the relationship of theory and praxis in the seventeenth and eighteenth centuries, Vol. IV, Hannover, 1977 (Wiesbaden, 1982), 37-39.
5. S P Rigaud, Biographical account of John Hadley, Esq. V.P.R.S., the inventor of the quadrant, and of his brothers George and Henry, Nautical Magazine 4 (1835), 12-22; 137-146.
6. A Stimson, The influence of the Royal Observatory at Greenwich upon the design of 17th and 18th century angle-measuring instruments at sea, Vistas Astronom. 20 (1-2) (1976), 123-130.
7. E G R Taylor, The mathematical practitioners of Hanoverian England 1714-1840 (Cambridge, 1966), 123-124.

February 2005