398 Col. Beaufoi/'s Meteorological Observations. [May, 



Meteorological Observations continued. 



Table containing the 

 Needle, from the 

 March, 1818. 



Mean Monthly Variation of the Magnetic 

 Beginning of April, 1817, to the End of 



1817. 

 April. 



May. 



June. 



July. 



Aug. 



Sept. 



C Morning. 

 <Noon'. . . . 

 ( Evening . 

 C Morning. 

 <Noon . .. 

 C Evening . 

 f Morning . 

 <Noon ... 

 ' Evening. . 

 (Morning. 

 ■?Noon 

 (Evening. . 

 T Morning. 

 } Noon 

 (Evening. 

 ( Morning. 

 <Noon .... 

 (Evening. . 



Oct. 

 Nov. 



Dec. 



1818. 

 Jan. 



Feb. 

 March. 



By inspecting the table, it appears (hat the noon variation (with the exception 

 of the month of August) decreased from April to November, and afterwards in- 

 creased ; which circumstance renders it doubtful if the variation be yet arrived 

 at its maximum. 



