Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of December 1875. 



Latitude 22° 33' I" North. Longitude 88° 20' U" 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 



e*H 







O 



«3 







+J 





^ 





+3 



*<5 



3 

 o 





W 



pq 



O 

 CM 



a 



<v 



CO 





M 



4-3 



g 



+J 





Eange of the Barometer 

 during the day. 



Max. 



Min. 



Diff. 



,-Q 









pi 



+3 







^ 



a 



fi 



o 



PI 



fn 









Jl 



£ 



H 



Eange of the Tempera- 

 ture during the day.. 



Max. 



Min. 



DilF 





Inches. 



Inches. 



Inches. 



Inches. 







o 



o 



o 



1 



29.951 



30.029 



29.882 



0.147 



73.3 



83.0 



65.4 



17.6 



2 



.949 



.022 



.897 



.125 



73.9 



83.4 



66.4 



17.0 



3 



.937 



.026 



.872 



.154 



74.3 



84.2 



66.8 



17.4 



4 



.926 



.006 



.877 



.129 



73.9 



83.0 



66.0 



17.0 



5 



.921 



29.986 



.867 



.119 



73.5 



80.7' 



68.5 



12.2 



6 



.996 



30.061 



.936 



.125 



73.4 



81.0 



68.4 



12.6 



7 



30.037 



.112 



.977 



.135 



70.5 



78.8 



63.5 



15.3 



8 



.051 



.120 



30.001 



.119 



70.0 



79.0 



63.2 



15.8 



9 



.078 



.170 



.001 



.169 



68.6 



76.2 



60.0 



16.2 



10 



.033 



.124 



29.963 



.161 



70.2 



80.0 



61.3 



18.7 



11 



.011 



.084 



.953 



.131 



69.5 



78.5 



62.7 



15.8 



12 



29.998 



.064 



.949 



.115 



68.5 



77.5 



61.6 



15.9 



13 



30.035 



.129 



.981 



.148 



69.1 



79.0 



61.4 



17.6 



14 



.023 



.103 



.962 



.141 



69.5 



79.5 



61.5 



18.0 



15 



29.989 



.063 



.934 



.129 



68.4 



77.2 



62.8 



14.4 



16 



.998 



.082 



.955 



.127 



68.1 



78.0 



60.3 



17.7 



17 



30.029 



.104 



.978 



.126 



67.5 



76.9 



60.0 



16.9 



18 



.051 



.123 



.992 



.131 



66.6 



75.5 



59.0 



16.5 



19 



.036 



.112 



.962 



.150 



65.9 



76.5 



57.3 



19.2 



20 



.059 



.132 



30.006 



.126 



67.7 



76.0 



60.0 



16.0 



21 



.043 



.136 



29.976 



.160 



67.3 



76.8 



59.5 



17.3 



22 



.020 



.078 



.973 



.105 



67.8 



78.0 



59.5 



18.5 



23 



.089 



.154 



30.024 



.130 



67.3 



76.5 



59.5 



17.0 



21 



.112 



.185 



.056 



.129 



66.6 



75.5 



58.7 



16.8 



25 



.059 



.136 



29.977 



.159 



66.3 



76.4 



58.5 



17.9 



26 



.018 



.079 



.958 



.121 



66.7 



75.5 



59.0 



16.5 



27 



29.995 



.073 



.925 



.148 



66.3 



75.5 



58.5 



17.0 



28 



.992 



.080 



.938 



.142 



67.5 



77.5 



59.5 



ISO 



29 



30 .000 



.054 



.961 



.093 



67.7 



78.0 



59.3 



is. 7 



30 



.053 



.128 



30.000 



.128 



68.0 



78.5 



59.5 



19.0 



31 



.033 



.101 



29.982 



.119 



67.4 



77.0 



59.0 



18.0 



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. 



