21 9 
and Velocity of the Solar Motion. 
in the direction and comparative velocities in the largest stars 
that must not be overlooked. Four of them, Rigel, a Orionis, 
Spica, and Antares, have a motion towards that part of the 
heavens in which the solar apex is placed, and their motions 
are very slow. Three other stars of the ist magnitude, Arc- 
turns, Procyon, and Sirius, move towards the opposite part 
of the heavens, and their motions, on the contrary, are very 
quick. 
The direction of the motion of Aldebaran, compared with 
its small velocity, is no less remarkable ; and seems to be 
contrary to what has been pointed out with the three last 
mentioned stars ; we shall however soon have an opportunity 
of showing that it is perfectly consistent with the principles 
of the solar motion. 
The Solar Motion and its Direction assigned in tiie first Part oj 
this Paper are confirmed by the Phenomena attending the 
observed Motions of the 3 6 Stars. 
An application of some of the foregoing remarks will be 
our next subject ; and I believe it will be found, that in the 
first place they point out the expediency of a solar motion. 
That next to this they also direct us to the situation of the 
apex of this motion : and lastly, that they will assist us in 
finding out the quantity requisite for giving us the most satis- 
factory explanation of the phenomena of the observed proper 
motions of the stars. 
In examining the second figure, it has been shown that no 
less than six stars of the first magnitude, namely, Capella, 
Lyra, Rigel, « Orionis, Aldebaran, and Spica, have less velo- 
city than nine or ten much smaller stars. Aldebaran and 
F f 2 
