A voyage towards the North pole undertaken by His Majesty's command, 1773 . more accurate thaneither. It is not to be expected that the obfervations of a finglevoyage can be fufficient to determine the merit of any in-ftrument, partictilarly fo much confequence as thelog. I thought it right, however, to give an account ofthe trial I made of the different methods, and of fuchremarks as occurred to me. In the following table the courfe is put down, in thefirft column, for all the diftances and latitudes; after thediftance and latitude, according to each marking of thelog, there is a colum
A voyage towards the North pole undertaken by His Majesty's command, 1773 . more accurate thaneither. It is not to be expected that the obfervations of a finglevoyage can be fufficient to determine the merit of any in-ftrument, partictilarly fo much confequence as thelog. I thought it right, however, to give an account ofthe trial I made of the different methods, and of fuchremarks as occurred to me. In the following table the courfe is put down, in thefirft column, for all the diftances and latitudes; after thediftance and latitude, according to each marking of thelog, there is a column for the difference between that la-titude, and the latitude obferved. I thought it beft tocontinue the reckonings without corrections, as if therehad been no obfervation, in order to fhew the differenceupon the whole run, as well as from one obfervationto another. TABLE. APPENDIX. A B E. On the Voyage Out. Day of theMoiitli. June 16 7 Aiiguft 20 Com fc. N 27 E N 7 K N 7 w. SJ 4 W >J SO E N <; W Moith N 2 E N 4 E N 7S E liall N 21 W N 10 W N 26 E N 52 E September. By the Common Log,marked 49 Feet. Latin de Atco ,u. 60 S7 62 SZ 6i 61 0 66 47 67 47 70 16 7 45 72 46 73 5 73 5 74 10 76 4 76 39 76 5 Difference betihe Lutilude by ° 7o 16 3° 80 12 5^ 80 1; 42 79 24 39 77 ° li 75 5575 12 327 73 IV 45 72 40 44 72 ly 7° 7 9 5486 7 45 70 2969 369 068 14 65 57 Hy the Common Log,marked-4 5 Feet. ° 3° 3 ° 3 Latitude Jlftance. by Account. 60 39 29 147 63 5 141 65 25 5« 66 23 63 67 17 65 68 22 161 71 2 97 72 40 88 73 4^ 107 74 18 3b 74 8 64 75 « 137 77 33 30 77 59 22 78 i2 32 80 14 54 80 8 45 79 24 ?51 ?(> 59 «3 75 3« 52 74 5 ?37 72 45 49 72- 6 48 71 43 70 70 3^ 59 69 4j 93 68 10 7 68 7 49 67 19 14S 6+ 52 o 52 7 By tlie Common Log,marked 51 Feet. DitTerencc between LatitudeAccount. the Latitude bylAccount and Dillancc. Obferv tion. 0 10 26 60 36 0 6 3 62 46 0 7 126 64 51 52 65 43 57 66 32 0 7 5« 67 30 43 ^9 53 86 71 19 7« 72 iS 0 13 95 72 42 0 7 32 72 42 57 73 35 121 ,-7
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