An account of the trigonometrical operation, wherby the distance between the meridians of the observatories of Greenwich and Paris has been determined / By William Roy.
- William Roy
- Date:
- [1790]
Licence: Public Domain Mark
Credit: An account of the trigonometrical operation, wherby the distance between the meridians of the observatories of Greenwich and Paris has been determined / By William Roy. Source: Wellcome Collection.
149/200 page 139
![Table containing the Results of the Observations for the Effect of Terrestrial Refraction. T-». . -f . I-- . .... I'l-u. | I,,, . Dates of the Obfeivations. 1787, Oft. 21. 23- 19. 21. 19. 21. 26. 1788, Aug. 18. 23. 1787, Sept. 28. Oft. 7. *3- 26. 26. 1788, Aug. n. 18. 1787, Oft. 13. 1788, Aug. 11. 1787, Oft. 26. 21. Sept. 28. 1788, Sept. 2. Places. Allington Knoll Ruckinge Dymchurch Inn Allington Knoll Dymchurch Inn Allington Knoll Tenterden Ipn Padlefworth Frant Inn Botley Hill . . Dover Caftle PadleAvorth - - lairlight Down Tenterden Inn Tenterden Inn Goudhurft Churchyard Frant Inn Fairlight Down Goudhurft Churchyard Tenterden Inn Allington Knoll Dover Caftle Folkftone Turnpike Bar. ”TnT 29.61 2982 29.9 29.61 29 9 29.61 2 9-54 29.6 20.06 28.89 29.62 29 6 28.81 29-54 29-54 29.74 29.36 28.81 29.74 29-54 29.61 29.62 29-55 Therm. 56 5*1 55i 56 • 55f 56 562 70. 58 62! 582 70 5 Si 56I 56§ SH 58 55i S*i 561 56 58| 64 Stations. Height of the Telefcopeabove the Sea in Feet. g {If | Allington Knoll and Ruckinge _ __ j | High Nook and Lydd „ } Allington Knoll and High Nook — j Allington Knoll and Tenterden — _ Padlefworth and Lydd j Frant and Botley Hill j Dover Caftle and Padlefworth — | Fairlight Down and Tenterden —— Tenterden and Lydd —- _ j-Goudhurft and Frant .— , jj Fairlight Down and Lydd — jj | Goudhurft and Tenterden — jj G Allington Knoll and Lydd — —. j j Dover Caftle and Folkftone Turnpike j {ip r { 329- i ' 37-4 J 27.6 T J3°-4 J 329- \ 27.6 J 329- j 3*2-3 J 624. 1 130.4 J 659. | 880. J 469. 1 j J 599- 1 2-3 J 322.3 | 497- j 9- 1 642 599 322 322 130.4 497 659 599- ] i3°-4 J 497- j 322.3 J 329. 130.4 469. 575-3 Results of Diftance f the Station n Fathoms. Contain- ed Arc nearly. Mean1 Refraftion. Proportion- able Part. ✓ // / /✓• 2675-4 2 38 1 8 i and -§■ 5227.1 5 8 0 55 -s and 3864.1 3 48 0 38 X T 10296. IO 5 1 23i 7 and J I3255-5 l3 2 1 3i Z ~S 15060.7 14 48 2 I X s 7°9 3-5 6 57 0 42 I 11939-1 I I 46 1 12 X To 11027.8 10 5° 0 55i f X onr| X I I dI1U T!T 7398-3 7 *5 0 38! tt and A H948.3 II 43 0 55 X TT 9062.4 8 53 0 35 T tt 7975- 7 5i 0 21 I II 5259-1 S 9.4 0 12.8 X T? Coaft of France. 1788, Sept. 2. 1787, Sept. 28. 1788, Sept, 2. 29-55 29.62 29-55 64 58! 64 1 Folkftone Turnpike and N. D. Church at Ca- { J lais l Dover Caftle and N. D. Church at Calais 1 Folkftone Turnpike and Station at Montlam- J bert — — F. C. D. C. F. Mjj&Ls 575-3 l 140.5 J A 6g. 140.5 575-3 ] 05 J 26697. 22908. 28967. 26 4 22 28.2 28 29 3 54-8 0 15-4 1 4 5- and ts and ^ SECTION](https://iiif.wellcomecollection.org/image/b28763324_0149.jp2/full/800%2C/0/default.jpg)
