Narrative of the surveying voyages of his majesty's ships Adventure and Beagle (vol.2- Appendix): between the years 1826 and 1836 : describing their examination of the southern shores of South America, and the Beagles's circumnavigation of the globe

86 TABLE OF THE VARIATION OF THE COMPASS OBSERVED ON BOARD (aFLOAt). Date. Lat. North. Long. West. Var. West. Date. Lat. South. Long. West. Var. West. 1831. 1 1832. Dec. 30 43 20 12 00 23 50 Mi irch 30 18 07 38 38 2 37 , ^ 43 37 12 30 23 34 E\ST. ,. 42 31 12 40 24 18 Ai )ril 3 23 22 42 07 2 19 .. 3» 41 00 13 30 24 49 At Rio de Janeiro. 1 55 .. 40 15 13 50 24 25 WEST. 1832. M< ly 13 18 14 38 52 1 04 Jan. 1 38 41 15 00 23 35 .. 14 17 12 38 47 1 00 2 37 20 15 30 23 54 .. 17 14 38 48 1 15 4 33 00 16 10 23 00 16 35 38 48 1 52 5 29 32 16 20 20 41 . 15 15 01 38 4' 1 30 • > 29 30 16 22 20 48 23 13 25 38 37 2 08 7 28 20 16 15 20 24 • 25 14 42 38 22 2 20 28 12 16 20 20 20 . 15 29 38 24 2 54 *8 26 59 16 48 20 04 . 15 25 38 24 2 42 9 25 26 18 02 19 59 . 26 16 20 38 24 1 59 24 40 18 42 19 63 . 17 31 38 23 2 12 10 23 09 19 47 18 47 . 17 35 38 23 2 20 • 9 22 39 20 14 18 45 . 27 18 59 38 44 1 14 11 22 02 20 2tf i8 10 Ju ne 1 22 42 40 21 03 , , 21 44 20 39 18 22 EAST. , , 21 38 20 42 18 37 2 22 58 41 15 33 12 20 42 21 21 18 24 . 22 58 41 14 15 , , 20 18 21 23 18 20 Ju y 5 23 03 43 06 1 39 13 19 31 21 57 18 06 8 24 06 42 53 1 57 19 06 22 '7 17 39 12 26 33 43 48 3 39 14 17 50 23 10 17 06 13 27 13 45 48 4 35 15 15 29 23 52 15 52 • 27 14 45 50 4 34 16 15 17 23 35 15 22 • 14 27 it) 46 16 5 10 Feb. 7 14 54 23 30 15 55 17 29 53 43 13 6 52 9 13 20 25 20 14 49 . 29 52 43 12 6 02 10 12 17 2fi 25 13 43 . 18 31 09 48 57 7 50 11 8 50 27 02 12 44 21 34 09 52 03 10 27 14 2 10 27 50 11 08 All g. 20 35 20 56 47 12 30 15 1 20 29 05 10 39 21 35 49 56 49 11 21 16 1 00 29 23 09 23 . 35 54 56 47 11 36 • • 51 SOUTH. 29 25 07 20 22 36 53 36 55 56 34 56 35 12 17 12 23 17 01 29 59 8 58 '. • 23 37 02 56 36 13 07 28 30 18 8 18 Oc t. 27 At Mont e Video. 12 42 • , 28 30 18 8 03 31 34 5" 57 »3 12 09 19 3 29 31 57 8 00 No V. 1 34 42 57 28 12 24 20 Fernando d e Noroiiha. 7 53 2 34 35 57 55 11 06 21 3 09 32 02 7 54 • 14 34 55 56 19 12 00 23 5 04 32 01 7 45 . 26 34 58 56 10 12 56 March 1 13 12 38 34 2 07 • 27 34 48 56 42 12 26 19 13 29 38 30 1 47 • 29 35 07 56 0.5 12 29 20 13 11 38 29 2 11 De c. 3 40 46 62 06 15 26 13 38 38 20 1 21 5 42 16 Cl 32 16 12 22 15 03 37 25 3 22 6 43 14 61 17 16 20 .. 15 38 37 20 2 44 7 43 56 61 25 16 40 23 16 29 36 57 3 44 8 45 12 62 23 17 25 25 18 10 35 55 3 13 . 11 51 18 65 14 20 26 18 09 35 58 2 50 • 13 50 42 65 45 . 20 41 27 17 54 37 31 2 20 • 14 52 06 66 58 21 35 28 18 04 38 30 1 55 • 15 52 39 67 14 21 3' 30 17 59 38 46 2 24 1