10 C. V. L. CHARLIER. 
From the observed values of W given in Table I we get for the 
determinant D the form 
D'= EAN, 5.200, radios ba] 
= ÖNS ETAT 1.764 , + 29.442 
a RADIO = (MW | 
— 16.728, + 29.442, — 0.363, + 58.843 | 
For having more comparable numbers the radial velocities are 
here expressed in 10 Sirjst. y. as unit. 
The numerical values of the determinants are the following ones: 
DCS ce = AF ne 
DE 6024s” Di = Ar ON 
D. --c.-1359:56- LOOS 
Dy = — 22201. 
D, = + 15281.e 
The resultant values of the mean velocities — U,", Vy", W," — 
of the B-stars, in a system where the sun is at the origin, are 
U,'' = — 0.225 + 0.432 
(10) Por 9.095 a MA 
We" = + 2.587 + 0.310 
which values are expressed in Siriometers per stellar year. 
Considering the B-stars as being at rest the same numbers 
with the signs changed give the components of the velocity of the 
sun. Let £2, denote the velocity of the sun we thus have 
iQ cos D cos A= MI 
©, cos D sin A = 3.695 
(0) Sta ID) = + 2,537 
where D and A are the coordinates of the Apex. 
