January 28, 1805
[Clark]
attempt to cut through the ice &c get our Boat and Canoo out without Suckcess, Several Indians here wishing to get war hatchets made [here a drawing] this shape [1] the man Sick yesterday is getting well Mr. Jessome our interpeter was taken verry unwell this evening warm day
[Lewis]
Observed Equal altitudes with Sextant and artifical Horizon on the construction recommended by Mr. Andrew Ellicott, in which sperits were substituted for water, it being to could to use the latter.
| A. M. | 8 | 7 | 29 | P. M. | 1 | 52 | 34 | |
| " | 9 | 51 | " | 54 | 58 | |||
| " | 12 | 20 | " | 57 | 26 |
Altd. by Sextant at the time of observation 33° 25' —"
| h | m | s | |
| Chronometer too slow on mean time | 1 | 11 | 12.2 |
| s | |||
| her daily rate of going on M. T. too slow | — | — | 51.2 |
☞ the accuracy of this observation may be depended on.
Longitude of Fort Mandan as deduced from the observation of the end of toal darkness when the eclips of the moon tok place the 14th of January Astronocl. 1805
| h | m | s | |||||
| W. from Greenwich | 6 | 37 | 31.2 | or | 99° | 22' | 45.3 |
| h | m | s | ||||
| 6 | 37 | 47 | or | 99° | 26' | 45" |
[Ordway]
Monday 28th Jany. 1805. Clear and cold. all hands employed cutting the Ice from round the Barge. Got large prizes [3] & attempted to Shake hir loose but found that we could not move hir without considerable more cutting or other means.
