ANALYSIS OF THE 



Table III. — Awiregate amount and number of Disturbances of the 

 Inclination in the different Years of Observation. 



The ratios exhibit the variation due to the eleven year inequality. 



Tear. 



Sum. 





Ratio. 



1841—1842 



1842—1843 



1843—1844 



1844—1845 



ityg.'i 



742.1 



288.2 

 396.2 



603 

 408 

 184 



227 



1.65 

 1.22 

 0.47 

 0.6G 



The minimum amount of disturbances in the eleven year circle, therefore, occurred 

 in the besinning of 1844. 



Table IV. — ^Aggregate amount and number of Disturbances in each 

 Year arranged for Disturbances increasing the Inclination and 



FOR those decreasing IT; TOGETHER WITH THE RATIOS OP THE SUMS. 





Sum. 





Sam. 





Ratio. 



Tear. 



+ 



n 



- 



n 



+ 



- 



1841—1842 

 1842—1843 

 1843—1844 

 1844—1845 



727.'5 

 383.5 

 217.8 

 274.7 



338 

 197 

 136 

 157 



271. '6 



358.6 



70.4 



121.5 



165 



211 



48 



70 



1.81 

 0.96 

 0.55 

 0.68 



1.32 

 1.74 

 0.35 

 0.59 



The minimum of the eleven year period is equally well marked in the disturb- 

 ances increasing and in those decreasing the inclination. The sum of the positive 

 values (1603. '5) is to the sum of the negative values (822.'1) as 1.95 to 1. At 

 Toronto, between 1844 and 1848, this ratio was 5.6 to 1 ; the ratio, however, 

 increased from 2.7 to 8.5 to 1 during this time. 



In Tables V and VI, which exhibit the diurnal inequality of the disturbances, 

 the Avhole series between February, 1841, and June, 1845, is employed. The sums, 

 numbers, and ratios given do not in strictness apply to the even hours, but to an 

 epoch 20 minutes later. 



Table Y. — Aggregate amount and number of Disturbances op the 



Inclination, distributed over the even Hours op the Day, and 



RATIO showing THE DiURNAL INEQUALITY OF THE SUM. 



Hour. Sum. 



n 



Ratio. 



1 244.8 



143 



1.11 



2 . 









183.2 



110 



0.83 



4 . 











184.1 



111 



0.84 



6 . 











170.8 



98 



0.78 



8 . 











154.8 



94 



0.70 



10 . 











213.6 



116 



0.99 



Noon 











250.7 



141 



1.14 



14 . 











2«(t.9 



131 



1.19 



16 . 











232.4 



130 



1.06 



18 . 











245.0 



126 



1.11 



20 . 











253.6 



121 



1.16 



22 . 











238.0 



125 



1.09 



