Meteorological Observations, 



Ixxvi 



Abstract of the liesnlts of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the mouth of October 1870. 



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



Heiglit 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. 





Height of 

 barometer 

 Faht. 



Range of the Barometer 

 during the day. 





Ivange of 

 ture d ui- 



the Temp era - 

 ing the day. 



Date. 

















ri H(M 









3 * 











P^S 



Max. 



Min. 



Diff. 



i£ 



Max. 



Min. 



DifF. 





£^* 









S H 











Inches. 



Inches. 



Inches. | 



Inches. 















o 



1 



29.785 



29.850 



29.737 



0.113 



84.3 



91.2 



80.3 



10.9 



2 



.796 



.813 



.736 



.107 



84.8 



91.2 



81.0 



10.2 



3 



.819 



.875 



.747 



.128 



81.7 



83.7 



77.7 



6.0 



4 



.785 



.844 



.712 



.132 



79.5 



83.2 



77.5 



5.7 



5 



.731 



.797 



.662 



.135 



82.0 



87.5 



77.2 



10.3 



6 



.753 



.826 



.700 



.126 



84.3 



90.0 



80.5 



9.5 



7 



.788 



.857 



.729 



.128 



85.1 



90.5 



81.3 



9.2 



8 



.798 



.868 



.730 



.138 



85.3 



90.8 



81.4 



9.4 



9 



.797 



.854 



.744 



.110 



83.5 



90.0 



79.0 



11.0 



10 



.828 



.900 



.754 



.146 



82.9 



87.5 



79.8 



7.7 



11 



.845 



.911 



.784 



.127 



84.1 



89.0 



79.5 



9.5 



12 



.833 



.906 



.769 



.137 



83.8 



89.0 



80.3 



8.7 



13 



.798 



.873 



.729 



.144 



83.7 



90.0 



80.5 



9.5 



14 



.803 



.869 



.756 



.113 



84.1 



89.4 



80.0 



9.4 



15 



.802 



.867 



.737 



.130 



84.6 



89.6 



80.5 



9.1 



16 



.813 



.870 



.762 



.108 



83.6 



89.8 



80.5 



9.3 



17 



.848 



.908 



.810 



.098 



82.0 



90.5 



78.8 



11.7 



18 



.872 



.935 



.815 



.120 



81.2 



88.0 



78.0 



10.0 



19 



.872 



.947 



.804 



.143 



82.5 



89.0 



77.5 



11.5 



20 



.884 



.946 



.822 



.124 



83.2 



89.5 



76.6 



12.9 



21 



.893 



.968 



.825 



.143 



84,3 



91.6 



78.0 



13.6 



22 



.873 



.943 



.801 



.142 



81,6 



91.0 



79.4 



11.6 



23 



.868 



.922 



.812 



.110 



80.2 



83.3 



76.0 



7.3 



24 



.879 



.962 



.831 



.131 



77.5 



80.6 



75.0 



5.6 



25 



.827 



.895 



.760 



.135 



81.0 



87.5 



76.5 



11.0 



26 



.767 



.826 



.712 



.114 



78.2 



79.8 



76.0 



3.8 



27 



.751 



.831 



.699 



.132 



79.6 



85.0 



76.7 



8.3 



28 



.843 



.907 



.799 



.108 



79.9 



85.6 



75.2 



10.4 



29 



.868 



.932 



.805 



.127 



81.7 



87.0 



77.5 



9.5 



30 



.883 



.936 



.839 



.097 



81.6 



86.7 



76.8 



9.9 



31 



.880 



.946 



1 



.823 



.123 



80.9 



86.2 



77.0 



9.2 



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. 



