Meteorologica I Otserva twnn. 



XL'IS: 



Abstract of the llesnlts of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of JDecemlcr 1870. 



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



Height of the Cistern of the Standard Barometer above the sea level, 18.11 feet. 



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

 dependent thereon. 



Date. 



Mean Height of 

 the Barometer 

 at 32° Faht. 



Range of t\\e Bai 

 during the d 



•ometer 

 ay. 



Max. 



Min. 



Diff. 



fil 



r-4 



H 



Range of the Tempers 

 tare during the day. 



Max. 



Min, 



Diff. 





Inches. 



Inches. 



1 

 Indies. 



Inches. 















o 



1 



30.058 



30.135 



30.011 



0.124 



69.5 



79.0 



61.5 



17.5 



2 



.065 



.132 



.009 



.123 



69.0 



78.5 



61.2 



17.3 



3 



.094 



.164 



.039 



.125 



68.1 



78.0 



60.4 



17.6 



4 



.086 



.149 



.025 



.124 



67.6 



77.3 



60.2 



17.1 



5 



.078 



.144 



.017 



.127 



66.2 



74.4 



60,0 



14,4 



6 



.059 



.126 



.009 



.117 



65.8 



74.7 



58.2 



16.5 



7 



.082 



.150 



.039 



.111 



67.1 



76.6 



60.2 



16.4 



8 



.083 



.152 



.038 



.114 



66.4 



75.8 



58.5 



17.3 



9 



.076 



.157 



.024 



.133 



65.6 



74.6 



57.8 



16.8 



10 



.066 



.121 



.020 



-"5101 



65.8 



75.5 



58.6 



16.9 



11 



.051 



.125 



29.979 



.146 



65.4 



74,5 



75.6 



16.9 



12 



.022 



.102 



.964 



.138 



64,5 



72.8 



57.5 



15.3 



13 



.032 



.091 



.988' 



.103 



66.0 



74,9 



58.5 



16.4 



14 



.083 



.152 



30.038 



.114 



65.4 



75.2 



57.6 



17.6 



15 



.100 



.184 



.045 



.139 



66.4 



75.5 



58.5 



17.0 



16 



.057 



.136 



29.986 



.150 



67.1 



75.8 



60.6 



15.2 



17 



.018 



.104 



.958 



.146 



e,5.9 



75.0 



58.6 



16.4 



18 



29.994 



.068 



.927 



.141 



64.8 



73.5 



75.5 



16.0 



19 



30.008 



.095 



.940 



.155 



63.9 



72.4 



57.2 



15.2 



20 



29.929 



.010 



.851 



.159 



61.2 



73.4 



57.0 



16.4 



21 



.850 



29.919 



.789 



.130 



66.1 



75.8 



58.0 



17.8 



22 



.930 



30.019 



.846 



.173 



67.1 



77.0 



59.0 



18.0 



23 



30.043 



.126 



.991 



.135 



66.4 



75.5 



59.0 



16.5 



24 



.058 



.137 



30.015 



.122 



66.7 



75.3 



60.5 



14,8 



25 



.029 



.118 



29.956 



.162 



65.8 



74.0 



59.1 



14.9 



26 



29.983 



.063 



.929 



.134 



66.1 



74.5 



59.4 



15.1 



27 



.982 



.052 



.932 



.120 



G5.7 



74,6 



58.0 



16.6 



28 



30.018 



.108 



.969 



.139 



66.2 



75.9 



58.5 



17.4 



29 



.004 



.078 



.939 



.139 



67 



77.2 



59.6 



17.6 



30 



29.961 



.025 



.900 



.125 



68.2 



77.8 



60.8 



17.0 



31 



.916 



29.997 



.852 



.145 



70.2 



80.1 



62.8 



17.3 



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

 Thermometer Means are derived, from the hourly observations, made at the 

 several hours during the day. 



