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Show [ 243] 154 l !Jncampment on l\lortlt fork of Platt(' 1'iNJr, mouth of tlw S weet TVlLter.Continucd. I>ETEHl\liN.'\'riO:'i 0 [·' L ON GiTUDE. August 23, 1 4.2.- Distnocc from the second lilllu of the Moon to Jupiter .. (With the circl '.) Obsen·atiou . Time of chronometer. Apparent distance. h. min. St'C. cleg. m:a. !II' C. 7 43 17 .................... 7 52 54 .................... 7 56 33 .................... 8 Ul 58 .................... 8 05 43 .................... b ll n- ... J .................... 14 :35 .................... 8 20 50 .................... ~ 24 22 . . . . . . . . . . . . . . . . . . . . 8 29 20 lG 59 10 R esult of calculation. True di ·tancc. :\1ean time at Greenwich. Longitude. ------·-- -1------- ----------- cle:r. mitt. uc. 81 10 38 h. min. sec. 16 41 21 dr.g. min. sec. 107 40 00 Noon halt on Horses/we creek . DETERJ\1IN ATION OF LATlTUDE. August 30, 1842.- Altitude of the Sun in the meridian. Observations. Double altitude of the True central altitude. Sun's lower limb. Latitude. -------------- deg. 11iin. sec. 112 38 35 deg. min. sec. 56 33 57 deg. n• ln. SI'C. 4~ 24 24 Index error == - 1' 30''. 155 [ 243] Encampm.ent on tlte left bank of the North fo rk of the Pltttte river. DETC: H.I\1TN ATION OF L.\ Tl'l' l: DE. epteml>cr 4, 1 '12.- Alti tude of a: Aquill:C in the mcricltan. Observn t i01 As. Double a ltitude of a T nt nJtiludc. Latitude A qui l a~ . deg. mnt. sec. clrz. 111 t n. :lt'r. dr,.r.,r . min. '" 113 0 30 56 3:l 56 41 51 :lt3 Index error, == - 1' 30". Encampnwnt on the Ti crht bank of the N orth fork of J>Latte ?'it:er, jive 1niles above Chimney Rock . DETER. l\1 11\"ATION OF LATiTUDE. September 5, 1 4.2.- Altitude of Polaris. Observations. Double a lt it1de of Po- T ime of chronometer. lari . clcg. min. sec. h. min. su. 84 12 90 11 07 o:l 84 14 50 1l 10 43 4 J7 20 11 H 55 4 18 50 Il 16 39 84 21 50 11 20 50 Index error, ==- 1' 30''. .September 5, 1842.- Altitnde of (% Aqu il re in the 11 eridtal · Observations. Double altitude of a True central altitude. Latitude. A<jttilx. -------- drg. min. sec. 113 30 40 deg. mn. $c. 41 43 36 de"'. min . sec. 56 44 00 |