Meteorological Observations. xxv 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 



in the month of April, 1865. 



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



Height of the Cistern of the Standard Barometer above the Sea-level, 1 8 ft. 11 in. 



Daily Means, &c. of the Observations and of the Hygrometrical elements 

 dependent thereon. 





43 O •» 



Range 



of the Barometer 



hi 



Range of the Terr 



pera- 





^1^ 



du 



ring the d 



XJ. 



ture during the 



day. 





















Date. 

















S5^ 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





3 









s 











Indies. 



Inches. 



Inches. 



Inches. 











o 







1 



29.885 1 



29.974 



29.802 



0.172 



84.9 



96.4 



75.0 



21.4 



2 



Sunday. 

















3 



.843 



.908 



.789 



.119 



83.6 



94.6 



78.4 



16.2 



4 



.842 



.918 



.735 



.183 



83.8 



98.2 



73.4 



24 8 



5 



.885 



.947 



.811 



.136 



80.4 



90.0 



72.4 



17.6 



6 



.814 



.888 



.737 



.151 



83.6 



93.0 



77.0 



16.0 



7 



.786 



.878 



.715 



.163 



85.3 



94.6 



79.0 



15.6 



8 



.788 



.853 



.731 



.122 



87.5 



96.5 



81.6 



14.9 



9 



Sunday. 

















10 



.811 



.885 



.746 



.139 



87.5 



96.8 



80.4 



16.4 



11 



.825 



.908 



.771 



.137 



86.2 



96.6 



80.2 



16.4 



12 



.872 



.949 



.785 



.164 



85.1 



93.6 



78.2 



15.4 



13 



.897 



.985 



.833 



.152 



84.3 



92.1 



75.2 



16.9 



14 



.877 



.964 



.794 



.170 



85.4 



94.6 



79.2 



15.4 



15 



.816 



.885 



.731 



.154 



85.7 



95.2 



79.6 



15.6 



16 



Sunday. 

















17 



.729 



.795 



.675 



.120 



81.5 



90.8 



76 4 



14.4 



18 



.824 



.905 



.716 



.189 



82.6 



92.4 



75.4 



17.0 



19 



.879 



.969 



.809 



.160 



84.4 



92.5 



78.2 



14.3 



20 



.761 



.852 



.664 



.188 



85.4 



93.6 



79.6 



14 



21 



.701 



.778 



.622 



.156 



86.2 



94.8 



S0.6 



14.2 



22 



.744 



.795 



.673 



.122 



79.6 



91.1 



73.4 



17.7 



23 



Sunday. 

















24 



.714 



.786 



.647 



.139 



82.5 



91.0 



76.2 



14.8 



25 



.706 



.786 



.629 



.157 



85.7 



93.8 



79.8 



14.0 



26 



.736 



.808 



.653 



.155 



86.4 



92.6 



81.4 



11.2 



27 



.782 



.845 



.693 



.152 



84.6 



91.4 



77.9 



13.5 



28 



.729 



.802 



.637 



.165 



85.6 



91.6 



80.6 



11.0 



29 



.639 



.715 



.526 



.189 



85.0 



90.6 



75.8 



14.8 



30 



Sunday. 











I 





1 



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

 mometer Means ore derived from the hourly Observations made during the day, 



