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Show APPENDIX B.- TABtB 07 GEOGRAPHICAL POSITIONS. 301 GEOGRAPHICAL POSITIONS- Continued. LoQAinnt Longitude weft of Greenwich. No. 87 " 38 * 9 40 H 42 48 44 45 46 47 48 ,49 60 Grow Creek, one end* keif milee below the> kanyon. Branch of Lodge Pole Creek, \ n Cheyenne Pass. Branch of Chng- water Hirer... Chug- water Rirer; Bridgets ravine.... Fort Laramie « • - North Platte Rirei^ left bank, kelow month of Hone Creek. Scott's Bluffs Left bank of Platte Hirer,- Left bank of Platte Hirer Ash Hollow; one mile from rirer. Fort Kearny.... „ , Oak Grore; Little Bine Rirer. Boa& at leering Little Bine Rirer........ Fort Learenworth, according to the determinations of Major Emory and M. Nicollet 41° 09,08". 6 41° 21' 46". 7 41° 46' 85". a 41° 89' 68". 4 42° 12' 88". 2 41° 65' 86". 7 41048' 26". 7 41Q46' 89" 41° 88' 22" 41Q17' 18". 7 40° 88' 45" 40° 18' 41". 2 40° 11' 16". 89° 21' 14" 105° 08' 24" 105° 12* 21" 104° 69* 25" 104° 56' 45" 104° 81' 26" 108° 58' 28" 108° 46' Or 108° 2l' 44" 102° 45' 10" 102° 02' 28" 98° 58} 11" 97° 54' 86" 97° 89' 02" 94Q44' 00" REMARKS. The longitudes given in the table depend npon those assumed for Fort Leavenworth, and a point in Great Salt Lake Valley, taken from Nicollet apd Fremont. Their means for fixing, these points were so superior to ours that they are necessarily adopted; Our sextants being imperfect, and the mode of transporting chronometers, of the kind furnished, interfering with their regularity. On leaving Fort Leavenworth, the two chronometers differed but 8.$ seconds; they were put into leather boxes, carefully adjusted upon two mounted men, and at the end of the first six miles differed 11 minutes and 11 seconds. From subaequent observations the logs was attributed to No. 1961. They were then carried in a spring- wagon with the other instruments. Thq average daily difference for the entire route was a little above, one second.. The relative rate was, for. sixteen days, a losing one of half a second; then, to Laramie, one and a half second's gain. Thence they were carried in another light wagon, and the rate was about <? ne second. Whatever important changes one received, - was therefore partaken by the other. |
