RS 
& 7 
2 
3 
172 
As to meteorological data, it is-not to be expected that the 
very minute influence can be detected from any other observa- 
lions than those made at а tropical station and even this 
only when those observations are extended over a very long 
period. | 
2. The data to which the proposed new method is applied are: 
° the daily means of barometric pressure, 
2° the daily range of the same, 
5° the daily means of atmospheric temperature, 
4° the daily range of the same. 
For each of these quantities 7740 data were available 1.6 
the number of days from the first day of January 1866 till 
March, 11, 1887. 
They have been arranged according to the number 25.8 in 
tables containing 26 vertical columns by leaving a blank in the 
14" column of the 5%, 8", 15%, ete. horizontal file. In this 
way ten tables of 50 horizontal lines each are obtained which 
have been summed up separately. 
If x be the angular variation during one solar day and the 
tabulation be assumed to be continuous, the sum of the first 
group of 50 files will be, in accordance with (1); 
— 
#5 = . 2 d 
АС N Тази sin uL С4-29 х 12.9 2 , 
sin 12.9 n 26 
generally the sum of the p" group will be: 
$in30 х 12.9» (9 : | 
ER ы doa пи) nC 2912904 50 (р-1) 2584 
9 
sin 19.9 n - 96 
In order to calculate from the 10 formulae thus obtained 
the unknown value u, a quantity (p — 1) pz is added to each 
argument, in which < is an arbitrary angle, conveniently 
chosen, and ра whole number positive or negative. The total sum 
of the ten groups taken conjointly will be represented by the 
expression : 
