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Show [ 243 J 122 Encampmeut on a fork of Lodo·e Pole creek, :>,450 feet abo ·e the Gulf of .frie:t· ico. DETEhr.IINATION OF L 1\TlTUDE. July 13, 1 42.-Altitudc of Polaris. Observat io 1 ts. Double altitude of Po- Time of rhronomcler lnris. deg. min. 80 3i 80 39 80 43 sec. 30 50 00 h. 11 It 11 mm. 35 38 41 Index error == + 15''. Result of calculation. sec. 16 J() 24 True altitude. Mean time. La.titutir de.~. mtn. ~n . 41 08 34 deer. min. sec. 40 19 12 h. min. sec. 9 28 50 DETEHl\UNATION OF LONGITUDE. July 13, 1 42.-Altitude of a Aquila'. Obse·rvations. Double altitude of a Time of chronometer. Aquil:c. ~- <le~. min. sec. lt. min. sec. 83 36 30 11 46 45 84 21 20 11 49 06 85 05 40 11 51 22 85 41 10 ll 86 53 14 34 50 11 56 OL E7 12 10 11 58 Q5 Result of calculation. Mean time. Advance. Longitude. h. min. 9 41 sec. 47 h. 2 min. sec. 10 38 dtg. ~05 mi11 . 13 ~ec . 3tl 123 [ 243] }}ncampm.cnt on 1 lorsc c1·eek . DETERJ\1 IN:\TION OF T.ONGlT 'DE. July 14, 1 ·12.-Altitndc of a: Aquila·. Ob ·ervat ions. J.'tnST HER I ~ • SECON'O !'iEntt.'.. I • Double altitude of n Time of chronometct·. Double alltlu<lc of a Time of cbronom,.lc,·. Aquil:.c. Aquilx. dc;r. min. sec. "· min. srr. \- <lrg. min. sec. "· min . 11 07 04 I 7:l ~0 40 ll ll 0~ :l9 74 16 50 ll 71 33 00 72 27 30 I I ndcx error == + 15". R esult of calculation. Mean tim e. Advanrc. Lou~iluJ c . dr:;. min. 5N lU4 59 23 h. min. sec. 9 01 29 lt . mill . srr. 2 09 31 DETER HN:\.TION OF LATLTUJ)I::. July 14, 184.2.- Altitude of PolariE. Observrztious. Double altit ulc of Po- Time of chronometer. bris. c!rg. mh1. $ec. h. min. stc. 82 95 :10 12 06 09 2 09 30 12 ll 09 82 11 30 12 13 57 2 15 20 12 19 16 Result of calculation. True altitude. Mean time. Latitude. 12 15 -----~ de g. 41 min. sec. 04 ~3 h. 10 mht. sec. de:;. min. scr. <'3 10 4l 40 13 3,~ ,.. 16 Ol • |