Meteorological Observations. 



lxx 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of September 1875. 



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



Height of the Cistern of the Standard Barometer ahove the sea level, 18.11 feefc. 



Daily Means, Sic. of the Observations and of the Hygronietrical elements 



dependent thereon. 





° s 



Range 



of the Barometer 



3 ** 



Eange 



of the Temnera- 





•^ 2 13 



during the c 



ay. 



ml 



o ° 



ture during the 



s day. 



Date. 

















..fflca 









a ft 











CD r^l +2 



Max. 



Min. 



Diff. 



03 2 



Max. 



Min. 



Diff 





Inches. 



Inches. 



Inches. 



Inches. 



O 







o 



o 



1 



29.6S3 



29.751 



29.612 



0.139 



84.7 



90.5 



81.0 



9.5 



2 



.638 



.691 



.560 



.131 



83.8 



88.9 



81.5 



7.4 



3 



.610 



.657 



.543 



.114 



84,8 



90.2 



81.0 



9.2 



4 



.630 



.676 



.583 



.093 



83.1 



87.2 



81.0 



6.2 



5 



.645 



.701 



.584 



.117 



79.8 



86.0 



■ 78.5 



2.1 



6 



.661 



.716 



.590 



.126 



81.5 



85.0 



79.0 



6.0 



7 



.620 



.678 



.535 



.143 



82.9 



88.4 



79.0 



9.4 



8 



.55D 



.6:2 



.466 



.166 



82.5 



88.9 



79.5 



9.4 



9 



.51 15 



.589 



.457 



.132 



80.4 ■ 



83.7 



77.8 



5.9 



10 



.630 



.729 



.543 



.186 



81.5 



86.0 



79.0 



7.0 



11 



.716 



.770 



.654 



.116 



84.3 



90.8 



79.2 



11.6 



12 



.721 



.767 



.656 



.111 



85.0 



91.7 



81.8 



9.9 



13 



.715 



.774 



.633 



.141 



84.6 



89.0 



80.8 



8.2 



14 



.713 



.773 



.633 



.140 



84,0 



90.6 



80.5 



10.1 



15 



.708 



.751 



.630 



.121 



83.9 



90.5 



80.5 



10.0 



16 



.730 



.797 



.670 



.127 



83.1 



88.5 



80.0 



8.5 



17 



.773 



.821 



.735 



.086 



79.0 



88.0 



77.8 



2.2 



18 



.815 



.870 



.766 



.104 



79.6 



84.6 



78.0 



6.6 



19 



.82(5 



.903 



.761 



.139 



80.6 



86.7 



78.0 



8.7 



20 



.805 



.SCo 



.728 



.138 



83.1 



89.3 



78.1 



11.2 



21 



.811 



.875 



.746 



.129 



81,3 



90.5 



79.5 



11.0 



22 



.811 



.915 



.777 



.138 



83.8 



89.0 



80.0 



9.0 



23 



.785 



.857 



.703 



.154 



84.2 



90.0 



80.7 



9.3 



24 



.744 



.800 



.686 



.114 



80.8 



85.0 



78.5 



6.5 



25 



.717 



.808 



.670 



.138 



80.9 



84,1 



79.7 



4,4 



26 



.739 



.801 



.673 



.128 



82.6 



89.0 



79.0 



10.0 



27 



.724 



.788 



.652 



.136 



81,5 



90.5 



81.2 



9.3 



28 



.685 



.731 



.(ill 



.120 



8:!. 3 



88.5 



79.5 



9.0 



2!) 



.675 



.717 



.598 



.149 



83.7 



89.5 



79.5 



10.0 



30 



.660 



.711 



.582 



.121) 



81,8 



90.4 



80.5 



9.9 



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

 Thermometer Menus .-ire derived, from the hourly observations, made at the 

 several hours during the day. 



