Meteorological Observations. xvii 



Abstract of the Besults of the Hourly Meteorological Observations 



taken at the Surveyor General' s Office, Calcutta, 



in the month of March, 1857. 



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 <u 



Range 



of the Barometer 



£ £ 



pq co 



Range of the Tempera- 







during the d 



*y- 



fr! 



ture during the day. 





93 85 



ffl CQ °i 









Q •! 









Date. 



















Max. 



Min. 



Diff. 



= -a 

 <u EH 



Max. 



Min. 



Diff. 





1" 









s 











Inches. 



Inches. 



Inches. 



Inches. 











o 



o 



1 



Sunday. 

















2 



29.854 



29.939 



29.778 



0.161 



80.3 



90.0 



73.9 



16.1 



3 



.808 



.879 



.734 



.145 



80.0 



89.2 



73.0 



16.2 



4 



.844 



.925 



.780 



.145 



80.6 



89.8 



74.4 



15.4 



5 



.863 



.942 



.817 



.125 



80.2 



89.0 



73.6 



15.4 



6 



.858 



.942 



.803 



.139 



80.3 



88.8 



73.6 



15.2 



7 



.868 



.980 



.752 



.228 



77.3 



88.2 



67.8 



20.4 



8 



Sunday. 

















9 



.969 



30.080 



.916 



.164 



74.3 



83.2 



68.7 



14,5 



10 



.937 



.061 



.881 



.180 



68.5 



70.4 



66.8 



3.6 



11 



.914 



29.972 



.829 



.143 



71.6 



80.4 



64.8 



15.6 



12 



.941 



30.023 



.889 



.134 



72.9 



81.9 



65.0 



16.9 



13 



.980 



.064 



.935 



.129 



76.5 



85.8 



67.4 



18.4 



14 



.950 



.031 



.888 



.143 



78.6 



88.6 



70.7 



17.9 



15 



Sunday. 

















16 



.885 



.973 



.810 



.163 



80.6 



90.6 



72.3 



18.3 



17 



.878 



.957 



.807 



.150 



81.2 



92.4 



71.8 



20.6 



18 



.845 



.928 



.777 



.151 



80.8 



90.8 



72.4 



18.4 



19 



.812 



.882 



.748 



.134 



80.8 



92.6 



69.8 



22.8 



20 



.775 



.859 



.695 



.164 



82.1 



93.2 



74,1 



19.1 



21 



.771 



.836 



.713 



.123 



83.0 



94.2 



74.7 



19.5 



22 



Sunday. 

















23 



.733 



.809 



.646 



.163 



83.8 



95.1 



75.6 



19.5 



24 



.719 



.807 



.659 



.148 



84.4 



96.6 



74.8 



21.8 



25 



.741 



.816 



.676 



.140 



84.7 



96.2 



75.4 



20.8 



26 



.786 



.872 



.731 



.141 



85.8 



98.6 



75.2 



23.4 



27 



.784 



.879 



.689 



.190 



86.7 



100.2 



76.1 



23.8 



28 



.675 



.759 



.583 



.176 



86.5 



98.8 



76.8 



22.0 



29 



Sunday. 

















30 



.731 



.815 



.681 



.134 



85.7 



95.4 



78.8 



16.6 



31 



.802 



.881 



.757 



.124 



84.9 



94.8 



78.2 



16.6 



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

 Thermometers are derived, from the twenty-four hourly observations made, durin \ 

 the day. 



