Meteorological Observations. 



lxxxi 



Abstract of tlie Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of April, 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. 





£ 3 



Range 



of the Barometer 





Range of the Tempera- 





"So £ r 3 

 * S3 5-1 



3 33 ^ 



during the d< 



iy. 



M a 

 to 



a s 



2 " 



ture during the 



day. 



a 



Max. 



Min. 



Diff. 



Max. 



Min. 



Diff. 



Is 



Q 



i 









kS 











Inches. 



Inches. 



Inches. 



Inches. 



















1 

 2 



Sunday. 

 29.754 



29.842 



29.678 



0.164 



85.3 



97.6 



74.8 



22.8 



3 



.782 



.S72 



.721 



.151 



85.7 



98.0 



77.8 



20.2 



4 



.784 



.856 



.709 



.147 



85.2 



94.6 



79.5 



15.1 



5 



.76S 



.829 



.681 



.148 



85.4 



93.8 



78.6 



15.2 



6 



.781 



.841 



.722 



.119 



83.4 



93.6 



73.6 



20.0 



7 



.810 



.869 



.752 



.117 



82.5 



91.1 



74.0 



17.1 



8 

 9 



Sunday. 



.769 



.846 



.686 



.160 



84.1 



92.0 



78.8 



13.2 



10 



.722 



.773 



.635 



.138 



82.1 



88.0 



76.8 



11.2 



11 



.734 



.783 



.676 



.107 



82.2 



91.0 



74.6 



16.4 



12 



.757 



.833 



.668 



.165 



84.9 



94.6 



76.4 



18.2 



13 



.760 



.840 



.668 



.172 



84.4 



96.1 



74.8 



21.3 



14 



.799 



.866 



.726 



.140 



83.3 



92.0 



75.2 



16.S 



15 

 16 



Sunday. 

 .795 



.849 



.717 



.132 



83.6 



92.0 



74.5 



17.5 



17 



.798 



.856 



.715 



.141 



83.6 



93.0 



72.3 



20.7 



18 



.847 



.921 



.770 



.151 



80.8 



91.8 



72.2 



19.6 



19 



.826 



.913 



.742 



.171 



82.7 



92.2 



74.0 



18.2 



20 



.790 



.868 



.690 



.178 



85.4 



95.6 



77.0 



18.6 



21 



.747 



.820 



.664 



.156 



86.3 



95.0 



80.2 



14.8 



22 

 23 



Sunday. 

 .692 



.732 



.627 



.105 



85.7 



94.6 



79.0 



15.6 



24 



.719 



.767 



.659 



.108 



86.5 



94.0 



80.3 



13.7 



25 



.749 



.826 



.669 



.157 



86.6 



94.0 



81.7 



12.3 



26 



.732 



.793 



.669 



.124 



87.5 



95.2 



81.8 



13.4 



27 



.693 



.760 



.618 



.142 



87.9 



96.5 



81.4 



15.1 



28 



.680 



.746 



.639 



.107 



88.6 



98.2 



81.6 



16.6 



29 

 30 



Sunday. 

 .678 



.753 



.608 



.145 



89.1 



100.8 



80.6 



20.2 



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. 



