Meteorological Observations. 



Ixtf 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of September, 1858. 



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



Feet. 

 Height of the Cistern of the Standard Barometer above the Sea level, 18.1 1 



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

 dependent thereon. 





O <u 



Range 



of the Barometer 



PQ « 



Range of the Tempera- 





■5fp£ 



during the d 



d y- 



u 



ture during the 



day. 





*> * 



_ ., CO 









c S 









Date. 

















" "5 "5 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





1" 









& 











Inches. 



Inches. 



Inches. 



Inches. 



o 







o 



o 



1 



29.668 



29.718 



29.625 



0.093 



83.8 



88.6 



79.4 



9.2 



2 



.704 



.763 



.647 



.116 



84.9 



90.6 



80.4 



10.2 



3 



.695 



.772 



.628 



.144 



85.2 



90.6 



81.6 



9.0 



4 



.644 



.708 



.554 



.154 



85.1 



89.6 



81.4 



8.2 



5 



Sunday. 

















6 



.609 



.670 



.548 



.122 



84.3 



89.6 



80.0 



9.6 



7 



.670 



.722 



.599 



.123 



86.0 



93.6 



81.5 



12.1 



8 



.687 



.743 



.613 



.130 



85.7 



92.8 



82.4 



10.4 



9 



.691 



.754 



.627 



.127 



85.4 



90.8 



81.6 



9.2 



10 



.729 



.782 



.656 



.126 



85.5 



91.8 



81.4 



10.4 



11 



.717 



.795 



.643 



.152 



85.2 



91.4 



81.8 



9.6 



12 



Sunday. 

















13 



.558 



.616 



.466 



.150 



88.1 



95.0 



83.2 



11.8 



14 



.527 



.588 



.440 



.148 



89.1 



95.0 



84.6 



10.4 



15 



.589 



.676 



.533 



.143 



82.1 



85.4 



79.0 



6.4 



16 



.737 



.797 



.637 



.160 



83.3 



88.5 



78.8 



9.7 



17 



.755 



.817 



.674 



.143 



83.2 



89.9 



8i».2 



9.7 



18 



.691 



.760 



.609 



.151 



83.5 



88.6 



80.6 



8.0 



19 



Sunday. 

















20 



.584 



.643 



.504 



.139 



83.8 



88.8 



80.2 



8.6 



21 



.597 



.651 



.539 



.112 



82.4 



86.0 



79.8 



6.2 



22 



.656 



.741 



.593 



.148 



82.8 



87.6 



80.0 



7.6 



23 



.734 



.805 



.679 



.126 



84.2 



89.0 



80.4 



8.6 



24 



.755 



.825 



.696 



.129 



81.8 



84.8 



80.2 



4.G 



25 



.758 



.818 



.691 



.127 



80.0 



82.4 



79.0 



3.4 



26 



Sunday. 

















27 



.774 



.846 



.708 



.138 



79.8 



83.1 



78.0 



5.1 



28 



.794 



.851 



.739 



.112 



81.0 



86.3 



78.0 



8.3 



29 



.829 



.892 



.768 



.124 



82.7 



86.8 



79.2 



7.6 



30 



.786 



.847 



.695 



.152 



82.7 



87.0 



79.5 



7.5 



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. 



