Meteorological Observations. 



lxxxix 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of December, 1857. 



Latitude 22° 33' 1" North. Longitude 88° 20' 34" East. 



Feet. 

 Height of the Cistern of the Standard Barometer above the Sea level, 18.11 



Daily Means, &c. of the Observations and of the Hygrometrical elements 

 dependent thereon. 





O <U 



Range 



of the Barometer 





Range of the Tempera- 





- a S -5 



during the d 



a y. 



tl 



ture during the 



day. 





CO 









Q | 









Date. 

















a * 

 13 "5 * 



Max. 



Min. 



Diff. 



0) E"" 1 



Max. 



Min. 



Diff. 





1" 









3 



o 









Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



1 



30.022 



30.096 



29.975 



0.121 



70.5 



77.8 



65.0 



12.8 



2 



.041 



.125 



.990 



.135 



69.8 



77.9 



63.6 



14.3 



3 



.053 



.137 



30.000 



.137 



68.9 



78.7 



61.2 



17.5 



4 



.084 



.156 



.033 



.123 



68.4 



78.4 



61.2 



17.2 



5 



.078 



.167 



.000 



.167 



68.8 



78.6 



61.4 



17.2 



6 



7 



Sunday. 

 29.981 



.049 



29.921 



.128 



67.5 



77.8 



61.0 



16.8 



8 



.987 



.065 



.931 



.134 



68.1 



78.3 



61.6 



16.7 



9 



30.030 



.102 



.969 



.133 



67.7 



78.2 



58.0 



20.2 



10 



.052 



.127 



30.002 



.125 



68.4 



79.6 



59.6 



20.0 



11 



.060 



.138 



.001 



.137 



67.3 



78.6 



58.9 



19.7 



12 



.056 



.160 



29.988 



.172 



65.6 



76.6 



57.2 



19.4 



13 

 14 



Sunday. 

 .002 



.081 



.941 



.140 



66.2 



77.4 



57.6 



19.8 



15 



.004 



.074 



.936 



.138 



65.9 



77.6 



56.8 



20.8 



16 



29.992 



.068 



.917 



.151 



65.8 



76.8 



56.2 



20.6 



17 



30.028 



.092 



.965 



.127 



67.1 



76.8 



59.6 



17.2 



18 



.053 



.125 



.990 



.135 



67.3 



77.2 



59.4 



17.8 



19 



.035 



.127 



.972 



.155 



67.1 



77.6 



58.8 



18.8 



20 

 21 



Sunday. 

 .017 



.103 



.963 



.140 



67.3 



77.9 



59.1 



18.8 



22 



.020 



.105 



.961 



.144 



67.1 



76.8 



59.5 



17.3 



23 



.000 



.088 



.943 



.145 



66.7 



76.2 



58.4 



17.8 



24 



.006 



.088 



.952 



.136 



66.9 



76.8 



59.2 



17.6 



25 



.059 



.140 



30.011 



.129 



67.0 



78.2 



57.8 



20.4 



26 



.070 



.153 



.008 



.145 



66.2 



76.3 



58.2 



18.1 



27 

 28 



Sunday. 

 .080 



.164 



.021 



.143 



65.1 



75.4 



55.9 



19.5 



29 



.103 



.172 



.043 



.129 



66.3 



76.5 



57.6 



18.9 



30 



.079 



.158 



29.992 



.166 



68.2 



78.0 



60.7 



17.3 



31 



.103 



.191 



30.039 



.152 



68.3 



77.5 



61.6 



15.9 



The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb 

 Thermometers are derived, from the twenty-four hourly observations made, during 

 the day. 



