| Time per Watch, | Distance of Sun | Index error. | P.M. | and Moon. | +-----------------+-------------------+------------- Sept. 15, 1820. | 3ʰ 55´ 46˝ | 93° 59´ 30˝ | - 4´ +-----------------+-------------------+------------- Allowance for error of watch as usual. Longitude by account, 6ʰ 18´ west of Greenwich. Longitude of Belle Point deduced from the foregoing data, 6ʰ 17´ 24˝, or 94° 21´ 00˝ west of Greenwich. {xlii} A TABLE OF LATITUDE AND LONGITUDE, _Embracing the deductions recorded in the foregoing account of Astronomical Observations and Calculations._ =======================+===============+==============+=============== | | Longitude W. | Longitude W. Places of Observation | Latitude N | from |from Washington | | Greenwich | City -----------------------+---------------+--------------+--------------- Shippingsport, Ky | 38° 15´ 23˝ | | Camp on Mississippi, | | | June 8 | 38 26 09 | | Mouth of Merameg river | 38 23 39 | | St. Louis, Missouri | 38 36 18 |90° 02´ 35˝ |13° 02´ 35˝ Camp on Missouri | | | river, June 28 | 38 34 33 | | Franklin, Missouri | 38 57 09 |92 57 05 |15 57 05 Fort Osage, Missouri | 39 09 33 | | Cow Island, Missouri | | | river | 39 25 05 | | Camp on Missouri river,| | | Aug. 31 | 39 49 01 | | Fort Lisa, Missouri Fur| | | Co.'s Establishment | 41 24 13 | | Engineer Cantonment | 41 25 04 |95 43 53 |18 43 53 Mouth of river Platte | 41 03 13 | | Mouth of Elk-horn, | | | tributary to Platte | 41 12 00 | | Boyer river at | | | commencement of | | | High Lands | 41 32 15 | | Elk-horn river, near | | | Pawnee Trace | 41 26 07 | | Village of | | | Republican Pawnees | 41 17 03 | | Mouth of Missouri river| 38 51 39 |90 00 40 |13 00 40 Mouth of De Moyen river| 40 21 48 | | Mouth of Illinois river| 38 58 23 |90 18 00 |13 18 00 Cape Girardeau, | | | Mississippi river | 37 18 39 |89 17 00 |12 17 00 Spanish Fort at Natchez| 31 33 45 | |