Meteorological Observations. 



xlix 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor GeneraVs Office, Calcutta, 

 in the month of December, 1859. 



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 S 



Range 



of the Bar 



ometer 



pq cu 



Range of the Tempera- 







during the d 



iy. 



S 



bs 



ture during the 



day. 





e|°o, 









p a 









Date. 

















c U M 









S -3 











CLS *-> CC 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





3 









S 











Indies. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



1 



29.894 



29.973 



29.821 



0.152 



71.5 



80.0 



64.0 



16.0 



2 



.897 



.961 



.836 



.125 



72.8 



80.6 



66.6 



14.0 



3 



.928 



.992 



.880 



.112 



71.9 



79.3 



66.6 



12.7 



4 



Sunday. 

















5 



.942 



30.018 



.886 



.132 



72.7 



79.4 



67.5 



11.9 



6 



.940 



.013 



.887 



.126 



74.2 



79.2 



70.8 



8.4 



7 



.963 



.029 



.916 



.113 



75.0 



81.9 



69.9 



12.0 



8 



.969 



.047 



.924 



.123 



74.9 



81.2 



69.0 



12.2 



9 



.983 



.051 



.931 



.120 



73.5 



77.4 



70.6 



6.8 



10 



30.019 



.092 



.975 



.117 



73.0 



79.9 



67.8 



12.1 



11 



Sunday. 

















12 



.061 



.138 



30.002 



.136 



67.0 



77.0 



59.0 



18.0 



13 



.040 



.124 



29.981 



.143 



66.7 



76.4 



59.2 



17.2 



14 



.059 



.134 



30.011 



.123 



65.6 



75.2 



58.0 



17.2 



15 



.092 



.163 



.050 



.113 



65.1 



76.2 



56.2 



20.0 



16 



.106 



.166 



.065 



.101 



66.0 



77.6 



56.4 



21.2 



17 



.111 



.181 



.058 



.123 



67.2 



78.4 



60.0 



18.4 



18 



Sunday. 

















19 



.030 



.118 



29.964 



.154 



66.6 



77.0 



58.6 



18.4 



20 



29.986 



.080 



.930 



.150 



68.8 



79.6 



60.4 



19.2 



21 



30.003 



.081 



.946 



.135 



70.8 



80.6 



64.1 



16.5 



22 



.071 



.156 



30.023 



.133 



66.0 



75.6 



58.6 



17.0 



23 



.090 



.170 



.040 



.130 



65.2 



75.5 



56.5 



19.0 



24 



.105 



.195 



.038 



.157 



66.8 



76.2 



59.0 



17.2 



25 



Sunday. 

















26 



.045 



.123 



29.973 



.150 



67.2 



75.4 



60.5 



14.9 



27 



.021 



.099 



.971 



.128 



66.5 



76.8 



58.6 



18.2 



28 



.005 



.081 



.955 



.126 



66.0 



77.0 



57.6 



19.4 



29 



29.977 



.053 



.915 



.138 



65.3 



77.0 



56.2 



20.S 



30 



.980 



.053 



.933 



.120 



64.2 



75.6 



56.8 



18.8 



31 



.969 



.050 



.916 



.134 



63.6 



75.0 



54.0 



21.0 



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

 Thermometers arc derived from the twenty-four hourly observations made durinff 

 the day. b 



