Bleteorological Observations, xi 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Caleulla, 
tu the month of February 1871. 
Hourly Means, &e. of the Observations and of the Hygrometrical elements 
dependent thereon. 
33 Range of the Barometer .. | Range of the Tempera- 
AS lige for each hour during mat 8 ture for each hour 
"end the month. 2 during the month. 
oS : a 
Hour. 5 Eo. | |} Ag | 
8 | Max. | Min. | Dif. | 28 | Max. | Min. | Diff 
Ag | ae | 
| | | 
Inches. | Inches. | Inches. | Inches. | ea a 0) ° 
| ] | 
Mid- | 
night.| 29.914 | 30.042 | 29.872 | 0.170 70.3 76.0 | 65.5 | 10.5 
1 .906 035 .860 175 69.7 75.5 | 64.5) 110 
2 .898 .032 855 mi 69°1 75.3 63.7 | 11.6 
3 889 | 024: 846 178 68.5 75.0 63.0 | 12.0 
4 882 .027 837 | .190 68.0 74.7 | 62.0 | 12.7 
5 891 O41 843 198 67.6 74.5 61.5 | 13.0 
6 908 057 | 861 .196 67.1 74.5 61:0 | 13:5 
7 .928 .066 .888 178 67.0 73.7 60.5 | 13.2 
8 951 .090 913 177 69.2 | 76.5 | 63.8 | 12.7 
9 975 113 927 -186 Cake | 278.7 |p G65.) I.2 
10 .983 116 937 | 179 75.2 | 81.5 | 70.0| 11.5 
11 973 102 | 910 | .192 78.2 84.5 | 72.0 | 12.5 
i | 
| / | 
Noon. 946 | 067 | 890 | .177 80.3 | 86.5 | 66.7 | 19.8 
1 910 | = .033 841 | .192 81.9 88.2 | 68.8 | 19.4 
2 879 | 002 819 183 83.1 89.4 | 69.5 | 19.9 
3 861 | 29.979 803 | .176 | 83.7 90.5 | 70.0 | 20.5 
4 853 | 963 .803 160 83.4 90.3 | 69.5 | 20.8 
5 855 958 809 | .149 82.2 | 88.4 | 68.0! 20.4 
6 861 964 819 145 79.2 84.5 68.4 | 16.1 
7 873 978 833 145 76.3 81.5 | 68.0 | 13.5 
8 894 992 849 143 74.4 | 79.0 | 67.8} 11.2 
9 910 .999 860 | .139 Td. | 27.0) |e6hl | Ss 
10 916 | 30.002 | 874 128 | 71.8 76.3 | 67.5 | 8.8 
aE 916 | 29.991 881 TiO, | 71.2 76.3 | 66.5 | 9.8 
; | 
| Ths) le | 
| | 
Thermometer Means are derived from the observations made at the several 
hours during the month, 
