a 
ee Le 
She ees 
345 
In the following observations, the lower station was the 
N.W. coping-stone of the Barrow lock-gate in the town of 
Carlow; the upper station, the summit of Clogrenan Hill. 
Diff. of level by Ordnance Map = 157-00 fath. 
TaB_e I. 
Z Lower Station. Upper Station. ected ainroy 
* yp ee 
2 p 2 > “ied 8 pp OBSERVATIONS, 
z| ? t 493 |p-+P -f-F 
in. 
1/29°654| 0-260) 50°/28°646; 0-258} 4 9] 1-034 1:008 |Oct. 2, 1849; fine 
day. 
2)29-071} 0°320) 48 |28-054) 0-298) 45 | 1-029] 1-011 |Oct.3, 1849; wet, 
cloudy day. 
3/29°362| 0-234) 50 |28-355| 0-222) 44 | 1-033} 1:008 Oct. 4, 1849; fine 
day. 
4/29-555| 0-271) 47 |28:518) 0-263) 42 | 1-025; 1-009 October 5, 1849; 
heavy rain. 
5/29°880| 0-252) 49 |28-852) 0-203) 45 | 1-030) 1:008 |Oct. 8, 1849; fine 
day. 
6|29-934| 0-238} 49 |28-900} 0-249) 45 | 1-030} 1-008 pale 9, 1849 ; fine 
ay. 
7|29-687| 0:281) 49 |28:665) 0-249) 45 | 1-030} 1-007 |October 10, 1849; 
fine, cloudy. 
8|29°651| 0-214) 51 |28°620) 0-217) 46 | 1:033| 1:007 |October 12, 1849; 
high wind, fine. 
9/29°591) 0°430) 59 \28:-581} 0-420) 54 }1:050; 1.015 jOctober 19, 1849; 
wet and cloudy. 
10/29-609| 0:319} 55 |28-610} 0-308) 49 | 1040} 1-011 {October 20, 1849; 
fine; high wind. 
In observations 9 and 10, the lower station was at a point 
situated 15-06 feet above the lower station of the first eight 
observations. The barometer employed was made by Mr. 
Newman, of Regent-street. An observation of this barometer 
was made on setting out and returning from the Hill, and the 
exact height, at the time of the observation at the upper sta- 
tion, was found by interpolation, with the aid of observations 
of a good barometer, recorded by another observer, within a 
few yards of the lower station. In observations 9 and 10, the 
observation at the lower station was made simultaneously with 
a second barometer of Mr. Newman’s construction. 
In the following Table, I have calculated the heights from 
