APPENDIX. XX1 
Variations of the Barometer in Twenty-four Hours for the Last Six Months of the 
Year 1823. 
From 10 A.M. | From 5 P.M. | From 10 P.M. | From 4 A.M. 
to 5 P.M. to 10 P.M. to 4, A.M. to 10 A.M. 
18944) |r ae Sa 
{ 1823 Inches, Inches. Inches, Inches 
July 10 0 088 0:010 0-002 0 ‘080 
= 20 0°110 0°093 0 +038 0055 
= 30 0-065 0 +070 0°010 0*005 
Aug. 10 0 '076 0-064 0 ‘003 0'015 
Sree ay: a0 0°117 0°103 005% 0'072 
proach 18th. f° 
ee 30 0094 0 ‘072 0 +056 0 +066 
Sept. 10 0°075 0-085 0°025 0'015 
— 20 0°113 0°070 0 015 0'056 
= 30 0°103 0°123 0065 0°045 
Oct. 10 0 '085 0'075 0 ‘036 0 ‘046 
--- 20 0*065 0065 0*025 0°025 
— 30 0054 0-072 0-078 0 ‘060 
Nov. 10 0 *092 0'022 0°045 0:015 
— 20 0°048 0 +048 0004 0 *004 
— 30 0 ‘064 0*049 0 ‘010 0*025 
Dec. 10 0075 0 +046 0-018 0047 
_ 20 0°055 0 ‘055 0 °032 0*032 
_ 30 0 ‘065 0 ‘065 0'058 0 +058 
Mean ar 0 +080 0-066 0*032 0040 
First 6 Months, 0°078 0 ‘060 0°058 0*054 
Mean of both 0079 0063 0°035 0*047 
