Observations and experiments made at Port Bowen in the years 1824-25, on the figure of the earth, on magnetism, and atmospherical refraction / [Sir William Edward Parry].

  • William Edward Parry
Date:
1826
Catalogue details

Licence: Public Domain Mark

Credit: Observations and experiments made at Port Bowen in the years 1824-25, on the figure of the earth, on magnetism, and atmospherical refraction / [Sir William Edward Parry]. Source: Wellcome Collection.

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    Observations of Coincidences at Greenwich—continued. Height above the level of the sea 181,5 feet. P. M. 21 st April, Royal Observatory. Clock losing at a mean rate 3’.29. Barometer | Jjnngmf ^86} = 29-88 mean* Temp. Time of Disappear- ance. Time of Re-appear- ance. Mean of Dis- appearance and Re-ap- pearance. Arc of vibra- tion. Mean Arc. Interval in se- conds of Clock. Observed vibrations in 24 h. Correct, for Arc. Observed vibra. corr. for Arc. Disappearance. Disappearance and Re-ap. Disappearance. Disappearance and Re-app. Disap. Disap. & Re-ap. O h. m. s. m. s. m. s. O 0 s. s. vib. 58,5 I 31 17 3* 23 • 31 20 1.22 1.180 692 691,5 2.278 42 49 42 54 42 51 »5 I.I4 1.100 693 693 1.978 54 22 54 27 54 24,5 1.06 I.025 693 693,5 1 -719 2 5 55 6 1 5 58 O.99 0.955 692 694 I.492 17 27 17 37 17 32 O.92 0.885 696 695 I.281 29 3 29 11 29 7 O.85 0.825 694 694 I.II3 4° 37 40 45 40 41 0.80 0.775 695 695,5 0.982 52 12 52 21 52 16,5 O.75 0.725 693 694,5 O.860 3 3 45 3 57 3 51 O.7O 0.675 695 695 O.746 59>9 15 20 15 32 15 26 O.65 59,2 Mean. 693,67 694 86147,61 86147,73 I-38 86148,99 86149,1 I A. M. 22d April 1824, Royal Observatory. Barometer i ^ginning 29,81 ] g Clock losing at a mean rate 3s.29. l finding .. 29,843 ■ 54.5 8 48 32 48 37 48 34»5 1.20 1.160 696 2.200 9 00 8 00 13 00 10,5 I. I 2 I.080 696 697 1.908 11 44 5i 47*5 I.04 I.005 698 698 1.652 23 22 23 29 23 25>5 O.97 0.940 698 696,5 i.446 35 00 35 4 35 2 O.9I 0.875 696 698 1.252 46 36 46 44 46 40 O.84 0.810 696 697 • ••••• • ••••• 1.073 58 12 58 22 58 17 O.78 °-755 696 696 0.931 10 9 48 9 58 9 53 o-73 O 70C 607 6q7.C 0.812 21 25 21 36 21 20,5 0.68 0.655 698 697 0.702 58,8 33 3 33 12 33 7,5 0.63 56,6 Mean. 696,78 697 86148,72 86148,80 i-33 86150,05 86150,13 i