. Account of an expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and '20 : by order of the Hon. Calhoun, sec'y of war: under the command of Major Stephen H. Long. From the notes of Major Long, Mr. T. Say, and other gentlemen of the exploring party. Indians of North America; Discoveries in geography; Indians of North America. piece. 5' 23" 24'" fast. Mean time. Equal altitudes of Sun to find error of Time-piece, (pocket chrono- meter,) at midnight. Dec. 3, Error of Time- piece. 5' 43" 30"'fast. Mean time. Equal altitudes of Sun to fi
. Account of an expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and '20 : by order of the Hon. Calhoun, sec'y of war: under the command of Major Stephen H. Long. From the notes of Major Long, Mr. T. Say, and other gentlemen of the exploring party. Indians of North America; Discoveries in geography; Indians of North America. piece. 5' 23" 24'" fast. Mean time. Equal altitudes of Sun to find error of Time-piece, (pocket chrono- meter,) at midnight. Dec. 3, Error of Time- piece. 5' 43" 30"'fast. Mean time. Equal altitudes of Sun to find error of Time-piece, (pocket chro- nometer,) at noon. Dec. 4, 1819. Time from Noon, A M. 2" 40' 28" 2 38 03i 2 35 42A Time from Noon, 2" 32' 024- 2 29 2 27 ' o^" 1 41 [ Error of Time- piece. 5' 34" 07'"fast. Mean time. Rate of Time-piece, (pocket chronometer,) at ment, between the September and the 4th ducedfrom the preceding observations. Sept. 24,1819, at noon. Nov, Dec. 25 26 27 16 24 26 ») 27 28 3 ?? 4 do do do do do do at midnight at noon, at midnight, at noon, at midnight, at noon, at midnight, at noon. Fast for mean time, do do do do do do do do do do do do do do Engineer Canton- December, as de- I Var. for 12 hours. 8' S5" 30' 8 15 40 8 05 10 7 55 00 5 35 00 4 35 37 59 uu 34 16 16 34 94 43 10 11 95 54 35 14 55 yy 40 "70 35 00 15 9,3 09 23 24 9,0 06 43 30 9 93 34 07 9" 55" 5 15 05 24 42 51 losing. do do do do gaining. do losing, gaining, losing, gaining. do do losinff. During the time for which the rate of the pocket chronometer was determined as above shown, it was kept suspended in the cabin of the steam boat, which, during the day was kept warm by fire, gene-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original James, Edwin, 1797-1861, co
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Keywords: ., bookauthorad, bookcentury1800, booksubjectdiscoveriesingeography
