1816.] Astronomical and Magnetical Observations. 

 Mngnetical Olservations cwitinued. 



MoDlh. 



Dec. 

 Ditto 

 Ditto 

 Ditto 

 Ditto 

 Ditto 

 Ditto 

 Ditto 

 Ditto 

 Ditto 10 

 Ditto 11 

 Ditto 12 

 Ditto 13 

 Ditto 14 

 Ditto 15 

 Ditto 16 

 Ditto 171 



Morning Observ. 

 Hour. Variation. 



8'- 45' 

 8 45 

 8 45 



8 45 

 8 40 

 8 45 



24° 18' 

 -'4 16 

 34 17 



24 17 

 24 17 

 24 17 



8 45 24 17 

 8 36 

 8 .95 



24 17 

 24 18 



8 45 



8 45 



8 50 



8 45 



8 35 



8 50 



24 18 



24 20 



24 20 



24 19 



24 18 



24 19 



52" 



53 



04 



28 

 18 

 10 

 36 

 19 

 00 



Noon Observ. 



Hour. Variation. 



_ii ' 



1 30 



1 00 



1 40 



1 45 

 1 35 



12 

 20 

 14 

 40 

 14 

 46 



24 20 04 

 24 21 07 

 24 20 01 



24 21 18 

 24 20 30 



1 25 24 19 35 



1 20 24 19 59 



1 35 24 18 55 



1 30 24 20 48 



1 40 24 81 44 



1 55 j24 19 40 

 1 30 24 21 19 



Evt'uiiiir Ousrrv. 



Hour. Variation. 



o 



.a 

 o 





Jn taking the mean of the observations for the month of No- 

 vember, tlie variation on the 4th and 25th are rcjeetotl, as being 

 unusually great, for whieh no cause can be assigned. 



Dec. 9. — The needle vibrated at intervals 2G' '2i)"; and in the 

 evening the wind blew very haid and squally from the S.W. accom- 

 panied by rain. 



Vol. V. N* I. E 



