Meteorological Observations. 



Abstract of tlie Results of tie Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of September, 1860. 



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



Feet. 

 Height of the Cistern of the Standard Barometer above the Sea level, 18.11 



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

 dependent thereon. 







Range 



)f the Barometer 





Range of the Tem 



jiera- 





■si! 



during the d; 



y- 



r- o 



ture during the 



day. 





a J3 •<-> 









o s 



0) c~* 









Date. 



Max. 



Min. 



Diff. 



Max. 



Min. 



Diff. 





i" 









<i 











Inches. 



Inches. 



Inches. 



Inches. 



o 



o 







o 



1 



29.687 



29.737 



29.611 



0.126 



84.2 



89.6 



81.5 



8.1 



2 



Sunday. 

















3 



.686 



.740 



•640 



.100 



84.0 



89.6 



80.8 



8.S 



4 



.691 



.752 



•625 



.127 



84.5 



89.4 



80.8 



8.6 



5 



.712 



.762 



.666 



.096 



83.5 



87.4 



81.2 



6.2 



6 



.724 



.791 



.669 



.122 



83.2 



88.6 



81.2 



7.4 



7 



.660 



.724 



.574 



.150 



83.9 



89.5 



80.2 



9.3 



8 



.586 



643 



.507 



.136 



82.2 



86.0 



79.4 



6.6 



9 



Sunday. 

















10 



.724 



.794 



.658 



.136 



81.9 



83.8 



81.0 



2.8 



11 



.706 



.774 



.621 



.153 



83.6 



89.2 



80.0 



9.2 



12 



.684 



.736 



.613 



.123 



84.6 



91.0 



81.0 



10.0 



13 



.710 



.767 



.660 



.107 



84.5 



89.6 



80.8 



8.8 



14 



.701 



.766 



.641 



.125 



84.1 



89.0 



80.4 



8.6 



15 



.627 



.683 



.567 



.116 



83.2 



88.4 



80.6 



7.8 



16 



Sunday. 

















17 



.588 



.650 



.536 



.114 



84.2 



89.1 



81.4 



7.7 



18 



.563 



.610 



.504 



.106 



83.1 



90.0 



80.0 



10.0 



19 



.509 



.558 



.443 



.115 



81.6 



85.6 



79.4 



6.2 



20 



.505 



.608 



.417 



.191 



80.6 



82.8 



78.2 



4.6 



21 



.653 



.717 



.563 



.154 



81.0 



86.2 



77.2 



9.0 



22 



.694 



.745 



.635 



.110 



85.0 



91.2 



79.0 



12.2 



23 



Sunday. 

















24 



.694 



.756 



.620 



.136 



84.7 



89.2 



82.4 



6.8 



25 



.718 



.787 



.635 



.152 



84.9 



91.1 



81.3 



9.8 



26 



.725 



.793 



.671 



.122 



82.2 



88.4 



80.4 



8.0 



27 



.714 



.772 



.653 



!ll9 



82.5 



89.8 



79.6 



10.2 



28 



.719 



.796 



.642 



.154 



83.2 



8S.2 



79.8 



8.4 



29 



.703 



.777 



.630 



.147 



84.2 



91.2 



80.4 



10.8 



30 



Sunday. 

















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

 Thermometers are derived from the twenty-four hourly observations made during 

 the day. 



