136 
‘53 Thermometers. Micrometer 
ae Inserted in the Readings. 
<2 s| In the Bar Four or |—— Observations 
5] steam- rs Reading. | . 
7, She pipe. Now South Divisions. 
co) bis end. 
oO oO H. M. 
] 80,1 77,9 78,0 —1050 Focal distance of mi- 
2 79,9 77,6 77,5 |3 49 p.m.| —1071 |crometer 2,15 inches; 
3 214,2 212,5 | 212,0 +1127 |barometer 29,97 inches ; 
4 214,2 212,6 212,0 +1116 |stopcock of steam-pipe 
‘i 217,2 212,4 212,0 +1099 {frequently opened and 
6 215,4 212,8 212,5 +1114 |closed during this se- 
a 212,6 208,2 211,6 +1083 |ries. 
8 | 215,1 | 211,4 | 211,9 41089 sobahied ad Medsor 
9 214,8 212,3 212,4 1101 Evevant Ba Capt. Wil 
10°] 214,4 | 212,5 | 2121 )5 Op.m.| 1106 | sn haa 
5 71,3 71,3 71,9 —1198 ra) 
2 72,7 72,2 \7 Oa.M.! —1175 On the following mor- 
71,6 Hales —1185 |ning ee W. and J. P. 
Diferende of lisa 134,6 dilatation 2171 | Omics Ouising Nos. 7 & 8. 
timpeenen's falling, 140,6 do. 2296 
Third Series, 22nd November. Same Bar. 
1 72,7 72,6 72,5 |110a.m.{ — 860 Barometer 29,99. Wil- 
2 73,9 74,4 74,5 |1243p.m.} — 829 |cox and Prinsep. 
3 213,9 212,6 212,7 | 20Pp.m.| +1447 The micrometer re- 
BN e212,07 2a 4 22-2 t +1443 |mained perfectly sta- 
5 | 212,0 212,4 212,2 e +1443 |tionary for half an hour, 
6 212,0 212,4 212,2 | 40p.m.| +1443 [and the  steam-cocks 
5 were not touched. 
7 76,3 81,8 80,0 | 50P.m.| — 774 _ |rejected, not evenly cool. 
8 70,7 Jif, 71,8 | 90a.m.} — 926 {next morning. J. P. 
Difference of @ ‘rising, 138,9 dilatation 2288 
temperature, ) |falling, 131,5 do. 2218 [single reading. 
140,7 do. 2370 following morning. 
Fourth Series, 23rd November. Same Bar. 
1 72,9 73,2 73,9 )1157a.m.] — 897 Barometer 30,02. 
2 72,9 73,4 73,9 — 896 | Wilcox and Prinsep. 
3| 2123 | 2125 | 212.3 |1217e.m.] +1394 
4| 2125 |} 2125 | 2123 +1394 
5 211,9 212,4 212,2 +1387 
6 21257 212,5 212,2 +1379 
7 | 212.8 | 2124 | 2122 |125P.m.1 1379 
8 75,5 76,5 76,7 |415P.mM.| — 872  |rejected. 
9 72,0 73,4 72,8 |110a.m.) — 920 |following morning. 
Difference of | |rising, 138,7 dilatation 2283 
temperature, f |falling, 139.2 ditto. 2306 
Second Series, 21st November 1832. 
Further Experiments on the 
[Marcu, 
Standard 10 feet Bar. 
