296 Scientific Intelligence. 
the night of July 3, 1861, four observers here saw in the hour ending at 
104 5™ p,m. thirty-six shooting stars, or about half as many as are seen 
during the corresponding hour on the 10th of August. 
t is to be hoped that observers, situated from 50 to 100 miles apart, 
will hereafter act in concert on the nights of meteoric abundance, so that 
in case of meteors remarkable for magnitude or other pies — 
may be obtained for determining their astronomical ele . 6, 
markable Rain-Fall in Ohio.—(Extract of a iene from s. B. 
Mc Mirus LLAN, dated East Fairfield, O., Aug. 15, 1861, to the Editors). “The 
same day (Aug. 12th) witnessed the greatest fall of rain ever recorded in 
this part of the yep in an equa 
From noon to 1" p,m. there fell 0°32 in. rain, 
45 30m * to 5° 30 P. 1°4 
* 6b 30 “ gh 5 * 
“ gh “ jh és “ 3°44 “ “ 
ak “«  & in 11 hours; 
6 29 inches of woke fell i in four and a half ho 
aximum rain-fall existed over at fies "100 square miles. Few 
fais biaiia —ma horses were drowned, four or five 
pete were swept to destruction. The dead bodies of four per- 
f respictability , and the only persons known to have been drowned, 
were found the ra da r the rain several miles below where the 
hich they were ore away crushed in Be 
In the Se from which it was water was seven feet igher 
ane own, reaching to ike second story of nearly every 
ver 
house in the town. There was almost _ here and only a modene 
amount of lightning. A hea 
ee also at Cleveland and seater Wi Where it did much damage.” 
. Rain following the Arges 1 of Ordnance ; (note to the National 
Intligenes, July 25, 1861.)—Messrs. Editors: In October, 1825, I took 
note of a very copious rain that prein 2! followed the dise os 
ordnance during the celebration of the meeting of the waters of 
Erie and the Hudson, upon the completion of the Erie canal; # in 
1841 I pubiished my continued observations on the sahjed which, to my 
mind, fully established Be fact that the discharge of peary artillery at 
contiguous points produces such a concussion that the r collects and 
falls generally in sinslilt 4 quantities the same day or ths ant following. 
The early battles of the late war between the French, Sardinians, ans, and 
ustrians were succ y such copious rains that even small rivers 
were not fordable; and during the great battle of Solferino a storm arose 
such fierceness that for the time the conflict ceased. Within the last 
par weeks McClellan’s columns on the upper Potomac fought four ame 
ent battles on as many og and there were extensive rains > 
close of each day. July 21st the great battle of Bull ‘Run, ey tte 
- and next t day (24) ae rain was copious all ad's and far 
, ee ae data as Mr. veo ee poy 
ae to important r ‘results equally in theory and practice ED 
