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Show 243] 100 St. Louis.-1-les?.deuce of Col. J. B. Brant. DETERMINATION OF Tll\11-:. May 2,1, 1 42.-Altitudc of the Sun. Obsc rvat-iOJts. Doubl altitude of the low- Time of chronometer cr limb of the un. (Brockbank.) dcg. mill. sec. /1. m?n. ~cr. (j 32 54 6 36 55 42 49 10 41 12 30 40 :JO 10 (j ;) 54 Result of calculat,ion. \La...'11imc. Advance. I Lon~iturlr. :---, +t. lt7t.in. SI'C. h. min. st•r. ~ 13 40 1 2;) 3"- " v , ........................ . DETERMINATION OF LOKGITUDE. 1.1ay 27, 1842.-Altituue of Vega. Ouserva tious. t-'lflST I::RI~ S . SI::C0!'\1'> ~CRII!;~. - -- ;llltet\· · w of Vega. Time of chronometer. Double al t ituuc of Time of chronomelCJ·. . No. 7,810. Vega. No. 7,810 . ·-- -- ,. ·b 1\ .. 1.,1 c. h. 'I'll in. sec. I dr~. min. sec. h. mi11. . rr. ,'f"Jl :20 :J 57 4:3 90 4:3 30 4 06 4l Oi '>G 3 5!) 31 !H li 20 4 0\,; 10 "59 10 4 01 Jl 9:2 Ol 5 (J 4 10 09 "22 20 4 03 01 !)2 3!1 40 4 11 52 .':~.1 -20 4 04 25 93 .C..),:._) 10 4 13 46 Thermometer 66°. 101 St. Louis.- Residence of Col. J. B. Brant-Continuf"t: , R esult of calculation. , 'lcsn time. Advance. I..ongitudi?. II. mi.n. sec. h. mi.n. sec. dcg. min. 10 16 35 5 49 01 90 ~ ~ DETERMINATIO~ Ot• LATIT UDE. .May 27, 1 42.-Altitude of Polaris. Observations. Double altitude of Polaris. Time of chronometer. cU>g. ?ni.n. sec. 74 38 20 74 :39 10 74 40 10 It. min. src. 4 30 27 4 32 41 4 35 20 Index error = - 20''. R esult of calculation. True altitude. Mean time. t!ea- min. sec. h. min. sec. cleg. I:'' 37 18 12 10 43 48 38 Latitude- 7nt1l. 31 $(Y.~ 5! u~. 2t -- - |