APPENDIX. 



373 



XVI. 



METEOROLOGICAL OBSERVATIONS MADE ON BOARD THE UNITED STATES SHU' 

 VINCENNES, UNDER THE EQUATOR. 



NOVEMBER 6tH, 1838. 



Mean Barometer, 

 Highest at 11 p. m. 

 Lowest at 3 p. m. 



Mean Sympiesometer, 

 Highest at 11 p. m. 

 Lowest at 4 p. m. 



Mean temperature of air, 

 Mean temperature of water 



29-99 

 30-04 

 29-94 



29-68 

 29-74 

 29-62 



75-37° 

 76-10° 



NOVEMBER 7TH. 





BAROMETER. 



SYMPIESOMETER. 







HOUR. 

















P. M. 



A.M. 



P. M. 



A. M. 







1 



29-98 



29-98 



29-66 



29-68 



Mean Barometer, . . . 



. . 30-00 



2 



29-98 



29-98 



29-66 



29-67 



Highest at 9 a. m. . . 



. . 30-05 



3 



29-96 



29-98 



29-63 



29-68 



Lowest at 3 p. m. . . . 



. . 29-96 



4 



29-97 



29-98 



29-63 



29-68 







5 



29-97 



30-01 



29-64 



29-70 



Mean Sympiesometer, . 



. . 29-68 



6 



29-98 



30-02 



29-65 



29-72 



Highest at 8 a. m. . . . 



. . 29-74 



7 



30-00 



30-02 



29-68 



29-70 



Lowest at 4 p. m. . . . 



. . 29-68 



8 



30-02 



30-03 



29-68 



29-74 







9 



30-03 



30-05 



29-70 



29-72 



Mean Temp, of air, . . 



. . 76-20° 



10 



30-04 



30-02 



29-72 



29-69 



Mean Temp, of water, . 



. . 76-18° 



11 



30-04 



30-00 



29-72 



29-68 







12 



29-98 



29-99 



29-68 



29-66 







2G 



