234 Shooting Stars of Nov. 14th, 1867. 
soe y of the other station as seen from it, From this point 
et fall a perpendicular Q upon the fundamental great circle. 
be 
which we shall call Z, and the distance SS, will be equal to 
the distance of the stations multiplied by the cosine of the 
n ; 
the side $8, and the adjacent angles A—Z and 180°+Z—A 
The sides SP, and 8, P are then found by the solution of this 
triangle. The observing stations being projected on § and S, 
by lines parallel to the course of the meteor, it follows that the 
first station, and A, and A", the corresponding distances as 
seen from the other station, Then the meteor and the points 
P and § will torm a triangle right-angled at P, the angle at 
the meteor being A at first appearance and A! at extinction. 
Qais 
at commencement. k 
D',=PS ,cosec}A!,= distance of meteor from second station 
at : 
“Finally, the heights of the meteor above the earth will be 
ssn I ultiplying these distances by the sines of the ob- 
