DrIvRNAL VARIATIONS FOR THE MAGNETIC Dip. 
Ixiii 
TasLeE 59.—Diurnal Variations of the Magnetic Dip for different Periods, deduced from Days selected 
as free from Irregular Disturbance in the Years 1844 and 1845. 
Six Months. 
March 
to 
Aug. 
| Twelve 
| Months. 
} 
— 0-350 
— 0-223 
— 0-086 
+0-012 
+ 0-069 
+ 0-163 
+0-754 
+ 1-300 
+1-719 
+1-851 
+ 0-837 
+0-174 
— 0-286 
— 0-686 
— 0-750 
— 1-008 
—1-117 
— 1-166 
— 0-990 
— 0-806 
— 0-702 
— 0-579 
KOODNTIMAUNURWNKe OO 
_a— 
+0-396 || 
+ 1-463 || 
TABLE 60.—Differences of Disturbed and Undisturbed Diurnal Variations of Magnetic Dip, as deduced 
from Tables 58 and 59, exhibiting the Effect of Irregular Disturbance on the Hourly Mean Position. 
Six Months. 
RBODOONIauRWwNre Oo 
— 
MAG. AND MET. oBs. 1845 ann 1846. 
Twelve 
Months. 
