Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January 1870. 



Latitude 22° 33' 1" North. Longitude 88° 20' 31" East. 



Heiglitof 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. 







Range of tlie Barometer 





Range of the Tempera- 







during the day. 





ture dm 



•ing the day. 



Date. 

















ri PH<N 









3 & 











I o<*> 



Max. 



Min. 



Diff. 



SJ 



Max. 



Min. 



Diff. 





ST* 



| 







^ H 











Inches. 



Inches. 



Inches. 



Inches. 



o 



o 







o 



1 



30.021 



30.087 



29.959 



0.128 



64.1 



>7,i K. 

 1 -31. 



56.0 



18.5 



2 



.009 



.091 



.955 



.136 



65.8 



76.5 



57.5 



19.0 



3 



29.939 



.009 



.864 



.145 



67.8 



79.3 



58.6 



20.7 



4 



.908 



29.987 



.856 



.131 



68.9 



79.7 



61.0 



18.7 



5 



.942 



30.010 



.901 



.109 



69.0 



80.3 



60.2 



20.1 



6 



.975 



.042 



.928 



.114 



70.3 



82.4 



61.0 



21.4 



7 



.937 



.015 



.869 



.146 



71.8 



82.5 



63.0 



19.5 



8 



.947 



.030 



.883 



.147 



70.1 



78.3 



62.7 



15.6 



9 



.967 



.061 



.899 



.162 



67.4 



76.8 



60.0 



16.8 



10 



.925 



.010 



.846 



.164 



64.2 



76.0 



55.4 



20.6 



11 



.895 



29.992 



.832 



.160 



65.7 



77.5 



56.2 



21.3 



12 



.890 



.973 



.827 



.146 



64.4 



75.5 



56.5 



19.0 



13 



.873 



.954 



.808 



.146 



64.8 



76.5 



56.0 



20.5 



14 



.903 



.971 



.868 



.103 



65.2 



76.0 



55.5 



20.5 



15 



.944 



30.040 



.891 



.149 



66.0 



78.5 



56.4 



22.1 



16 



.957 



.043 



.906 



.137 



67.1 



79.5 



56.0 



23.5 



17 



.971 



.048 



.919 



.129 



69.0 



77.8 



63.2 



14.6 



18 



.961 



.0-1! 



.910 



.13! 



71.2 



79.2 



65.0 



14.2 



19 



.898 



29.980 



.842 



.138 



75.3 



83.2 



68.0 



15.2 



20 



.913 



.971 



.868 



.103 



73.7 



80.2 



70.3 



9.9 



21 



.984 



30.058 



.925 



.133 



70.0 



71.6 



67.0 



4,6 



22 



.974 



.051 



.923 



.128 



71.4 



78.5 



65.3 



13.2 



23 



.964 



.038 



.921 



.117 



70.0 



77.0 



65.5 



11.5 



24 



30.006 



.091 



.950 



.141 



65.1 



74,3 



57.4 



16.9 



25 



.028 



.127 



.975 



.152 



65.2 



75.6 



56.0 



19.6 



26 



.014 



.096 



.963 



.133 



65.4 



76.6 



55.7 



20.9 



27 



.008 



.106 



.961 



.145 



66.3 



76.7 



57.0 



19.7 



28 



.017 



.096 



.968 



.128 



67.3 



78.2 



58.6 



19.6 



29 



.022 



.118 



.962 



.156 



66.8 



78.4 



57.0 



21.4 



30 



.002 



.100 



.947 



.153 



67.6 



78.5 



58.6 



19.9 



31 



29.957 



.047 



.897 



.150 



67.1 



78.5 



58.0 



20.5 



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

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

 the day. 



