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, 1858. 



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



feet. 

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



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

 dependent thereon. 





O CD 

 u 0) « 



Range 



of the Barometer 



3 £ 



Range of the Tempera- 





I'll 



during the d 



*y- 



CD u 



ture during the 



day. 





►r « o 









c _S 



CB jH 

 CO -~t 











•** CQ (^ 



a o™ 



0) -i-> co 



Max. 



Min. 



Diff. 



Max. 



Min. 



Diff. 



SO 



Q 



S 









s 











Inches. 



Indies. 



Inches. 



Inches. 







o 











1 



29.804 



29.887 



29.732 



0.155 



84.6 



95.1 



76.8 



18.3 



2 



.775 



.852 



.707 



.145 



85.7 



96.8 



77.0 



19.8 



3 



.750 



.833 



.619 



.184 



87.1 



99.8 



77.4 



22.4 



4 

 5 



Sunday. 

 .813 



.895 



.737 



.158 



87.0 



96.4 



79.8 



16.6 



6 



.806 



.912 



.709 



.203 



86.4 



97.0 



77.0 



20.0 



7 



.742 



.821 



.662 



.159 



85.9 



97.4 



76.6 



20.8 



8 



.780 



.870 



.715 



.155 



86.4 



97.4 



77.8 



19.6 



9 



.792 



.899 



.699 



.200 



85.8 



96.4 



76.8 



19.6 



10 



.705 



.801 



.609 



.192 



86.7 



97.8 



77.6 



20.2 



11 

 12 



Sunday. 

 .698 



.773 



.621 



.152 



85.7 



93.0 



79.9 



13.1 



13 



.725 



.790 



.639 



.151 



86.4 



93.6 



81.0 



12.6 



14 



.762 



.836 



.710 



.126 



86.2 



93.0 



81.6 



11.4 



15 



.787 



.855 



.724 



.131 



86.1 



9 J. 2 



80.6 



13.6 



16 



.813 



.882 



.758 



.124 



85.2 



9!3.4 



79.1 



14.3 



17 



.805 



.875 



.746 



.129 



85.9 



94.1 



79.4 



11,7 



18 

 19 



Sunday. 



.768 



.854 



.685 



.169 



88.7 



101.6 



78.8 



22.8 



20 



.757 



.834 



.690 



.144 



88.0 



99.0 



80.0 



19.0 



21 



.789 



.859 



.729 



.130 



87.3 



97.0 



81.0 



16.0 



22 



.830 



.920 



.766 



.154 



87.0 



96.4 



80.8 



15.6 



23 



.762 



.860 



.660 



.200 



88.6 



99.7 



79.8 



19.9 



24 



.681 



.756 



.566 



.190 



87.4 



98.0 



79.8 



IS. 2 



25 

 26 



Sunday. 

 .735 



.881 



.577 



.304 



81.5 



93.0 



72.6 



20.1 



27 



.790 



.867 



.700 



.167 



82.G 



91.6 



72.7 



18.9 



28 



.809 



.880 



.729 



.151 



84.4 



92.2 



80.0 



12.2 



29 



.829 



.909 



.760 



.149 



85.7 



93.6 



79.0 



14,6 



30 



.776 



.869 



.656 



.213 



85.6 



92.6 



79.7 



12.9 



•• 



.... 



.... 



.... 



.... 



... 



.... 



.... 



.... 



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. 



