Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of October 1869. 



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



Height of tlie 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. 





o *-i 



llange of the Barometer 



1U 



Bange of the Tempera- 







dui 



ing the d 



!J- 



«1 



ture dui 



ing the 



day. 



Date. 

















d w K 









a ft 











1 S OT 



Max. 



Min. 



Diff. 



2J 



Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 



o 











o 



1 



29.789 



29.865 



29.720 



0.145 



84.2 



90.0 



79.8 



10.2 



2 



.794 



.850 



.719 



.131 



83.9 



90.5 



80.5 



10.0 



3 



.806 



.879 



.744 



.135 



83.8 



90.6 



80.0 



10.6 



4 



.753 



.824 



.661 



.163 



84.6 



90.4 



79.8 



10.6 



5 



.712 



.781 



.648 



.133 



85.1 



90.0 



80.5 



9.5 



6 



.721 



.789 



.680 



.109 



84.5 



89.5 



81.0 



8.5 



7 



.673 



.750 



.596 



.154 



83.2 



89.6 



77.7 



11.9 



8 



.666 



.756 



.515 



.241 



80.4 



82.6 



77.5 



5.1 



9 



.769 



.833 



.722 



.111 



82.3 



86.3 



79.4 



6.9 



10 



.787 



.855 



.714 



.141 



83.4 



89.0 



79.3 



9.7 



11 



.765 



.826 



.718 



.108 



83.6 



89.0 



80.0 



9.0 



12 



.792 



.867 



.750 



.117 



83.5 



89.3 



80.0 



9.3 



13 



.771 



.835 



.694 



.141 



83.6 



89.0 



78.6 



10.4 



14 



.755 



.806 



.713 



.093 



83.2 



88.6 



79.0 



9.6 



15 



.782 



.839 



.737 



.102 



82.6 



87.6 



78.5 



9.1 



16 



.788 



.853 



.741 



.112 



82.3 



87.5 



77.0 



10.5 



17 



.785 



.814 



.731 



.113 



80.8 



84.5 



79.2 



5.3 



18 



.792 



.858 



.733 



.125 



79.2 



83.5 



77.0 



6.5 



19 



.826 



.886 



.783 



.103 



79.1 



84.5 



77.4 



7.1 



20 



.832 



.887 



.774 



.113 



80.9 



87.5 



77.0 



10.5 



21 



.820 



.871 



.764 



.107 



81.0 



85.5 



76.8 



8.7 



22 



.863 



.912 



.803 



.109 



80.5 



87.2 



78.2 



9.0 



23 



.916. 



.978 



.860 



.118 



80.9 



87.0 



76.4 



10.6 



24 



.945 



30.009 



.883 



.126 



80.5 



86.7 



74.7 



12.0 



25 



.900 



29.962 



.844 



.118 



79.5 



84.4 



74.5 



9.9 



26 



.912 



.974 



.878 



.096 



79.7 



84.7 



75.8 



8.9 



27 



.957 



30.018 



.917 



.101 



78.7 



84.2 



75.0 



9.2 



28 



.957 



.026 



.915 



.111 



76.9 



82.9 



71.5 



11.4 



29 



.937 



.015 



.893 



.122 



76.7 



83.5 



71.0 



12.5 



30 



.909 



29.973 



.857 



.116 



77.1 



84.5 



71.2 



13.3 



31 



.947 



30.010 



.889 



.121 



78.0 



85.7 



72.0 



13.7 



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. 



