32 Prof. Evans on the Guernsey Co. (O.) Meteor of May 1, 1860. 
discharge of a heavy piece of ordnance, re by a roar of 
about two seconds in continuance. merchant of Marietta, 
happening to be at dinner, suspected it was the explosion of a 
powder magazine in his store about a quarter of a mile distant. 
The Parkersburg News says, “the houses shook as with an 
earthquake.” In the counties of Washington, Morgan, Noble, 
Monroe and Belmont, and in places along the Virginia side of 
the Ohio river from Parkersburg to Wheeling, those who were 
within doors very generally attributed it to an earthquake. The 
windows rattled; and local papers state that the door of an engine 
house was jarred open at Bellair near Wheeling. The lines of 
direction of the sound from all sides, as ipertacdg mpc by those 
who happened to be out of doors, cross each other in the southern 
(not far from the central) part of Noble county; while the 
inhabitants of that region thought it was overhead. Prof. An- 
drews, giving the results of personal inquiries, says, “the people 
of the northern part of Noble See. heard it ina southern or 
southeastern direction, and not in a northwestern direction 
towards New Concord.” At “Yanesville about 12 miles from 
New Concord, the Courier described the noise, not as a succes- 
sion of sounds, but as an “explosion.” These facts clearly 
indicate that the great detonation heard at these various places 
was one and the same sound, and that it proceeded from a point 
over the interior of Noble county. The most probable location 
is five or six miles south of Sarahsville. It was undoubtedly the 
Jirst produced, but the last heard, of the successive sounds described 
as receding to the southeast by witnesses in the neighborhood 
where the meteoric — fell; and it was compared by them 
to the roar of thunde 
Again, Prof, Smith 1 says, ‘‘as regards the size of the meteorite 
I have but to refer to my experiments made in 1854, and pub- 
lished in the Journal of 1855, to show the’ eitedk fallacy ‘of caleu- 
lating the size of luminous objects by their apparent discs.” 
As the above remark is made in reference to my estimate of 
the size of the meteor, it is but justice to myself to say that I 
had acknowledged the danger of error from this source, and ha 
only insisted that if the apparent disc and the estimated distance 
be assumed as data, we shall obtain for the diameter of the meteor 
about TT eighths of a mile. (Vide Number 88, J uly, 1860.) 
ow proceed to the discussion of the meteor’s path: 
and am of all I shall aim to state the data with as much accu- 
racy as possible. It is eh er to say that the latitudes and 
longitudes of places in at communication on this subject 
(July, 1860) were paver by the editors, apparently from com- 
mon maps. I shall here give latitudes, longitudes, and relative 
distances of places, as nearly as they can be determined from the 
most reliable surveys of this part of Ohio yet made; which, so 
