36 Prof. Evans on the Guernsey Co. (O.) Meteor of May 1, 1860. 
northern parts of Noble county. Many persons on the eastern 
border of Athens county, west of Marietta, saw the meteor in a 
apenas direction, passing from cloud to cloud at such alti- 
tudes as to to the same conclusion. Mr. John Brabham and 
seemed well attested. The directions were enever 
possible, as Srey out by the observers themselves, from their 
places of observation, Every case of very wide discrepancy i in 
testimony was by this means made to disappear. 
t us now use the data furnished by Messrs. Welles and 
Mackley for estimating the velocity of the meteor. It is to be 
observed that its bearing, as above estimated, being so nearly at 
right angles with the lines of vision of both observers, reduces 
the velocity almost to a minimum. Now Mr. Welles saw the 
meteor pass from 50° east of north to 20° east of north, (from 
above a to above c), a distance of 11 miles in about three sec- 
onds. This gives for its velocity, in the first part of its visible 
path, 3$ miles in a second. Mr. Mackley estimated that the 
cose was visible to him for six seconds. The distance in this 
case (from above d to above e) is = miles; the consequent 
velocity three miles a second. Here is as close agreement as 
could be expected: and in view of the tendency to exaggerate 
the time, we may presume that neither of these hago of the 
velocity is too great; but of the two, that based on Mr, Welles’ 
observation should be preferred, since the shorter pore! of time 
is the easier to estimate with precision. 
There is no strong evidence that the meteor was seen further 
southeast than where it first appeared to Mr. Welles, (a on the 
map), nor further northwest than where it was last seen by Mr. 
Mackley, (¢ on the map). The distance between these two 
where the stones fell; but from a comparison of his statements 
with those of others in the same neighborhood, I am disposed to 
admit that he made an error of ten or fifteen na in the 
direction. Rumors of persons in Morgan county having seen 
the meteor descend nearly to the horizon have, upon investigie 
tion, proved groundless. 
I a circumstance very favorable to correct gerne = of 
directions, on the part of observers, that they saw the rod 
h openings in the clouds. From the east side of its pat 
it was not seen at all, as the sky was completely overcast; but 
