36 HYDROGRAPHY. 



RATES OF CHRONOMETERS. 



UNITED STATES EXPLORING EXPEDITION. 





CHRONOMETERS ON BOARD THE RELIEF. 







R. 



R. 



R. 



R. 



REMARKS. 





20G6 



656 



1839 



2075 





1838. 















— 1*723 



-j- 9-255 



— 4-133 



+ 7-97-4 



At Norfolk. 



u 24 ' 



— 1*723 



4- 8'73 



— 4 - 89 



+ 7 - 19 







— 1-579 



+ 0-36 



— 4-65 



+ 7 - 42 





e P ' 









4- 7-21 





u 2 



_ 1-243 



+ 9-35 



— 4-58 









1-160 



+ 9-71 



4-51 



+ 7-49 





" 28 



_ 1-145 



4- 9-77 



4-58 



4- 735 





Oct. 5, . 







4-51 



i \ r<? 





" 12, . . . . 



^ r 



+ 9-92 









" 19 



1-010 



4- 1013 



4-51 



+ 8-13 





" 26 



0-923 





4-3G 



+ 8-49 





Nov. 2, 



_ 0-87 



4- 10-92 



4-21 



+ 8-42 





" 9, . . . . 



_ 0-81 



+ 11-27 



3-93 



+ 8-71 





" 16 



- 72 



4- 11-42 



— 360 



+ 8-28 





" 23 



0'67 



_[_ 11-42 



— 3-36 



+ 8-42 





"30, 







3-03 



+ 8-13 





Dec. 7, . . 



~~ 0-53 



4- 10-63 



2 - 91 



+ 7'92 





" 14, . . 



0-48 



+ 11-49 



2 - 87 



+ 8-28 





" 21, . 



0-49 



12-41 



— 2-89 



+ 9-81 



At Rio Janeiro 



"28, 



- 48 



+ 12 81 



— 3-36 



+ 9-54 





1839. 













a °' ' 



— 0-46 



+ 12-01 



— 3-63 



4- 8-51 





u ' 



— - 43 



4- 12-01 



— > 3 - 34 



4- 8-<2 





(( * 8 ' 





+ 11*51 



— 3*77 



4- 8-22 





' 





+ 11-29 



— 3-92 







e (( " ' 



— 0-42 



+ ] 1-08 



— 4-36 



+ 7"8 







— 41 



+ 11-29 



— 4-24 



+ 7-58 









+ 11-22 



— 4-28 



+ 7-51 





"22, 



— 0-41 



+ 11-65 



— 4-06 



+ 7-79 





Mar. 1, 



+ 0-53 



+ 12-41 



— 401 



+ 8-03 



At Orange Harbor. 



" 8, 



+ 0-56 



+ 1243 



— 3-47 



4- 8-60 





"15, 



+ 0-63 



+ 13-00 



— 3-11 



+ 9-06 





"22, 



+ 0-81 



+ 12-39 



— 3-39 



+ 8-57 







+ 0-81 



+ 12-74 



— 3-04 



+ 8-92 







+ 0-94 



+ 13-39 



— 2-47 



+ 9-71 





"12, 



+ 1-17 



+ 13-96 



— 2-47 



+ 10-03 





"20, 



+ 1-27 



+ 13-84 



— 2-53 



+ 10-15 





"27, 



+ 1-35 



+ 14-21 



— 2-02 



+ 10-57 







+ 1-37 



+ 14-81 



— 1-45 



+ 11-24 





"11, 



+ 1-26 



+ 15-51 



— 1-13 



+ 11-87 





"18, 



+ 0-97 



+ 1555 



— 1-34 



+ 11-99 





"25, 



+ 0-84 



+ 15-15 



— 1-41 



+ 11-51 







+ 084 



+ 15-79 



— 2-05 



+ 11-59 



At Callao. 



