GODFREY, THOMAS 1 |
USA, 1704-49, NIM |
Sextant = Franklin Institute, Philadelphia, Pa.; "Improved" Backstaff, 1730 = Joshua Fisher (c.1731). |
glazier; invented a reflecting quadrant in 1730; in 1734 the Royal Society recognized both Thomas Godfrey (1) and James Hadley as independent inventors of the instrument. |
Philadelphia, Pa. |
Bedini 1 & 8; Gillingham 1; DSB; Price 2; Taylor 2(262); Cecil King; A.J. Turner 10; D.J. Warner 10. |
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