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Show [ 174 J 446 Ml~~lONARY TATIO. AT THE' D ·1 \ Tj 1' E OF THE COLUMBIA.• . · .. ff t't tfl' J.VOi'. 21 18•1'3--nte'ridion altilurlcsrj/l,csuDdcrmoHLtwn OJ a l u ' ' 11. OU 'E HV.\TIONS. 1)oubk ulti1\H1os of the r-uu's low<•r linlh. Time of dmmumcter. Dr g. TU/1/. ,\(c. h. Ill /1/. M.c. 18 25 40 0 46 56 4R 26 10 47 flfi 4 26 30 4 45 -:18 25 50 50 13 4 2;) 40 50 54 4 25 25 51 42 1 25 OG 52 30 4 24 40 53 32 Jndt•x error=+ 2 nun. II ~:>cc. nE~UL'r OF CALCULATION. True central nltitudr. Appar< nt timr of trnm;it. l,atitudc. ]Jru. min. .vc. /:' h. 111 i 11. SCI'· () 47 28 D£g. min. sec. 21 29 23 4 5 35 55 D eiennz·n a t z·o n "~")''J r 11· 77•' c, -...v. T1 (JL" 'f7', 1 ber ~4, l -J 3-a It itudes of o, LyTce. OU ERVATJONS. ,- Double nltJtudc of n J,ynr. I_ _________ T_i_n1_c_o_f_c_h_ro_n_o_m_e_te_r. ___ ___ lJtg. 81 1 min. 32 07 ,\CC. 30 30 Index error = + 2 min. lt . 7 min. sec. 4 23.0 4 f) 40.5 RE ULT OF C~.o\LCU LATION. Mean 6me. Advance. h. min. sec. ft. min. sec. 6 49 41 0 59 Z0.7 ------------------------~-------------- . . 33'' 13 • 'rh dmly losing rate of the chronometer, obtum<'d from t1w ob a .c . n,o 1w· n-: 11t tbi" place, JS • • • 447 [ 174 ] ENCAMPMENT ON A LA.HGE IH~AN( 'H OF FAJ,l, RIVER (RJVJ}:nE APX CHUTE'.) ' Determination of /on ,,.itudt·, .lVooemoer 26, 184 3- a/titudes of a Lyr~. OBSEI~VATlON ' , - J'l lt T St::Ill 1-.S. Rl'O U SLIIll.S. Douhk altitude.; of Time of chronotnt"trr. I Double altitudes of Time of chronometer. • J,yrro. I a Lyrrc . Peg. min. sec. h. s2 In 00 7 81 33 10 1 07 40 M<'nn timr. lt. fll/11. 8('('. 6 41 f>3 I min. I 'f('. Dcg. mm. :35 35.7 0 19 37 39 5 HO 3a 3 53.5 80 17 I I IJtle x <'rror + 2 lllill. 4 ~cr. nESUL'J' OF C .\L C l' LATlO~. Advancr. h. min. 0 57 sec. 06.0 - s•·c. lt. min. 8{(. (l() 7 :39 47.4 (I() 10 :}5.5 20 11 21.2 Determination of latitude, November 2G, 1843-r,Zti/udes of Polaris. OUSERVATJON • Do\Jblc nltituclr~ of PoJuri~. Time of duonomrter. .Dtg. mtn. (C. 93 07 f>O 93 08 ~0 93 08 40 93 09 10 93 09 JO 93 O!J 50 93 lO 15 H:i 10 25 !l ) 11 jl) 93 ] 1 ::35 ---- Inde-x error .... + 2 min. 4 ~rc. ---------- RESULT Ole' CALCULA 'J'JON. 'l'rur oltituJe. Menu timr. ---------------- Ltg. IIIII/. 46 ~14 II. (i Ill in. 52 ,• (C. 4.5 lt . 7 Ill 111. 45 16 47 '18 ~9 f>O F)J 52 53 [>4 Dg. 45 ·'l.C. 21 32 28 !<! I 10 09 ~!J 23 15 15 J,atitud<:>. • |