A CATALOGUE OF OBSERVATIONS OF LUMINOUS METEORS. 327 
The mean height of first appearance of the meteors derived from Table II. 
is 81-6 ; that of disappearance 57-7 miles above the surface of the earth. The 
mean direction of their flight is from azimuth 222° (W. from §.), altitude 28° ; 
and at the mean hour 10° 16™ 375 p.m. of the appearances, this point was 
situated in R. A. 43°-1, N. Decl. 50°-8, not far from the bright star (y) of the 
constellation Perseus. 
The mean of the velocities in Table III. is thirty-nine miles per second 
for seventeen observations ; but if we exclude the velocities of sixty-one miles 
and seventy miles per second of meteor No. (12), and that of seventy-five miles 
per second of meteor No. (9), as evidently in error, the mean geocentric velocity 
of the fourteen remaining observations is 34-3 miles per second, which agrees 
2° BY East. 
53° 
52° 
51° 
50° 
West. Zoek ae 0° 1° 7 East. 
