98 C. V. L. CHARLIER, 
These values give the mean velocity of the B-stars, considering 
the sun as being at rest, or — with the signs reversed — the velo- 
city of the sun relatively to the stars. 
Next the relative moments about the origin were computed and 
duly eheeked. I got the values 
acu sal inus ay DAF USOS 
= DEON VR 20 
Vie |) ana Pag cl 91202 
where at least one decimalplace too much is written down. 
Next the moments », about the mean are calculated. We get 
Visi CEAA0 ee NA 
recen Ua RER 
ee MER ee Oe Ee ey 
As a check we use the formula 
Por MEMO 1 ME Meats Ne 
i] 1 2 3 
^ij 
where in the sums ij take the values 11, 12, 13, 21, ete. 
From », we get the dispersions 
g, = Y», = 2.035 + 0.117 
0, = Vv, = 1.824 + 0.105 
0, = Vos = 1.329 + 0.078 . 
Furthermore we get for the coefficients of correlation the values 
Y = — 0.0156 + 0.0808 
ra = — 0.1360 + 0.0801 
Ya = — 0.1771 + 0.0796 . 
As a check we may use the formula 
0, 0, 0, Vra Va Vis = Y»; Var Via 
