Meteorological Observations. KXXV 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of December, 1863. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
ro £ ; | Range of the Barometer 5 9 Range of the Temperature 
=ag2 for each hour during co for each hour during 
Ligue > g Fa the month. fas) the month. 
"| mas as 
ao Oe) i=] 2 
S42 | Max. Min. Diff. Sey | Max. Min. Diff. 
= = 
Inches. | Inches.| Inches.| Inches. (0) o oO oO 
Mid- f 9 y 
night. 30.035 30.097 |29.948 | 0.149 62.4 65.8 59.4, 6.4 
1 027 .096 .939 Pa VA 61.8 65.2 58.8 6.4 
2 O19 O81 .936 145 61.1 64.8 58.4 6.4 
3 014 073 954 | .119 60.4 64.0 57.8 6.2 
4, ,005 .067 934 MS3) 59.9 63.4: 57.6 5.8 
5 .OL5 .055 .945 110 59.5 62.7 56.8 5.9 
6 .035 .092 .965 127 59.0 62.7 56.4 6.3 
di .054 100 991 109 58.9 62.8 56.4 6.4 
8 .080. .125 |30.014 11 62.8 65.8 59.0 6.8 
9 .099 140 045 .095 65.6 69.8 62.4: 7 A 
10 .105 wl53 045 .108 68.5 72.4, 66.0 6.4 
11 088 129 .030 .099 71.6) 75.0 68.8 6.2 
Noon .060 108 |29.999 | .109 73.9 77.3 71.4 5.9 
Opa 064 .968 .096 75.5 78.5 73.0 5 
2 |29.998 .040 939 LOL 76.5 79.7 74.0 yr | 
3 -981 | .030 OZ LOE 76.3 78.6 74.8 3.8 
4, 975 .030 914 116 74.8 77.2 73.2 4.0 
5 .983 044: .923 121 72.3 75.0 69.6 5.4 
6 .993 .058 937 121 69.8 72.2 68.2 4.0 
7 |30.011 .076 .960 116 67.7 71.0 66.0 5.0 
8 .027 -089 | 975 114 66.4 69.4 64.6 4.8 
9 .039 104, .979 125 65.2 68.6 63.4: 5.2 
10 046 113 .986 AMA 64.1 | 67.9 62.3 5.6 
11 .040 104)] .983)"} 121 |, 63.4 )) 67.2 61.3 5.9 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb Ther-. 
mometer Means are derived from the Observations made at the several hours 
during the month. 
