10 Horizontal-Intensitet. 1876, Juni 10. Afbpjnings-Observation. Kl. 5 5 Min. Eft. til 6.0 Min. E. K = 50.°5; r0 = 1, »# = 29° 30' 47"; r’ = 1.3, < = 12° 49' 35". C. Wille. Svingnings-Observation. Kl. 4.3 Min. Eft. til 4.15 Min. Eft. t0 = 52.°1, T0 - 4/52585; s = 4/88; « = 76'; a' = 19'; u = 12/82. C. Wille. Resultat. P = 0.022999; m = 0.76534; X = 3.1732. 1876, Juni 15. Svingnings-Observation. Kl. 12.15 Min. til 12.27 Min. Eft. t0 = 56.°8; T0 = 4/53062; s =■ 4/9; a = 50' cc' = 31', a — 12/51. H. Mokn. Afbojnings-Observation. Ivl. 1.20 Min. til 1.45 Min. Eft. U = 56.'2; u0 = 29° 29' 40"; u0' = 12° 48' 35". H. Mobil. Resultat. P = 0.02462; m = 0.76500; X = 3.1751. Svingnings-Observation. Kl. 2.4 Min. til 2.16 Min. Efterm. t0 = 57.°2, To = 4/52815; s = 4/9; a = 72'; a' = 22', u = 10/87. H. Mokn. Efter den foregaaende Afbojnings-Observation beregnes X = 3.1750. Svingnings-Observation. Kl. 6.6 Min. til 6.17 Min. Efterm. t0 = 54.°8, To = 4/52880; s = 4/9; a = 57'; «' = 19'; u = 9/03. H. Mokn. Efter den foregaaende Afbojnings-Observation beregnes X = 3.1746 1877, Juni 4. Afbojnings-Observation. Kl. 4.0 Min. til 4.55 Min. Efterm. t0 = 52.-9; Uo = 28° 37' 12."5; u0' = 12° 27'27."5. C. Wille. Svingnings-Observation. Kl. 6.57 Min. til 7.8 Min. Efterm. t0 = 48/8; T0 = 4/5902; s = 2/8; a = 74'; a' = 26'; u - 3/99. C. Wille. Resultat. P = 0.02433; >n = 0.74415; X = 3.1761. Inklination. 1876, Juni 12. Kl. 10.30 Min. til 11.45 Min. Form. Naal No. 1. C. Wille. 0 = 72° 43/35. Samme Dag. Kl. 1.30 Min. til 2.5 Min. Eft. Xaal No. 2. C. Wille. 0 = 72° 40/96. Horizontal Intensity. 1876, June 10. Observation of Deflection: — 5.5 p. m. to 6.0 p m. to = 50.°5; r0 = 1; uo = 29° 30' 47"; r/ = 1.3; Uo = 12? 49' 35". C. Wille. Observation of Vibration: — 4.3 p. m. to 4.15 p. m. t0 = 52.°1, To = 4/52585; s = 4/88; a = 76'; a' = 19'; u = 12/82. C. Wille. Result. — P =0.022999; m=0.76534-; X = 3.1732. 1876, June 15. Observation of Vibration: —.12.15 p. m. to 12.27 p. m. t0 = 56.°8; To = 4/53062; s = 4/9; a = 50', «' = 31, u - 12/5.1. H. Mohn. Observation of Deflection: — 1.20 p. m. to 1.45p.m. t0 = 56.°2; Uo = 29° 29' 40", uo’ = 12° 48' 35". H. Mokn. Result. — P = 0.02462; m = 0.76500; X = 3.1751. Observation of Vibration: — 2.4 p. m. to 2.16 p. m. t0 ‘= 57.°2-; T0 = 4/52815; s = 4/9.; a = 72'; «'= 22', u = 10/87. H. Mohn. Computed from the preceding observation of deflec- tion X = 3.1750. Observation of Vibration: — 6.6 p. m. to 6.17 p. m. t0 = 54.°8; T0 = 4/52880; s = 4/9; a = 57'; «'= 19'; u — 9/03. H. Mokn. Computed from tlie preceding observation of deflec- tion X = 3.1746. 1877, June 4. Observation of Deflection: — 4.0 p. m. to 4.55 p. m. t0 = 52."9; u0 = 28° 37' 12."5; u0 = 12° 27'27."5. C. Wille. Observation of Vibration: — 6.57 p. m. to 7.8 p m. t0 - 48.°8; T0 = 4/5902; s = 2/8; a. - 74'; a' = 26'; u - 3/99. C. AVille. Result. — P = 0.02433; m =0.74415; X = 3.J761. Inclination. 1876, June 12: — 10.30 a. in. to 11.45 a.m. Needle No. 1. C. Wille. 0 =' 72° 43/35. Same Day: — 1.30 p. m. to 2.5 p. m. Needle No. 2. C. Wille. 0 = 72°. 40/96.

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