Meteorological Observations. ix 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General' s Office, Calcutta, 



in the month of February, 1859. 



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. 





c <u 









■£> -J 











*" 2 - 



Range 



of the Barometer 



"3 2 



Range of the Tempera- 







during the day. 



pq g 



ture during the 



day. 





CO 









. O 



Q S 























a; 



C IB 



Max. 



Min. 



Diff. 



si 



Max. 



Min. 



Diff. 



Q 



1 " 









r< 











Inches. 



Inches. 



Inches. 



Inches. 







o 



o 



o 



1 



29.966 



30.056 



29.909 



0.147 



73.9 



83.6 



65.6 



18.0 



2 



.974 



.051 



.932 



.119 



73.8 



85.6 



63.8 



21.8 



3 



.955 



.048 



.884 



.164 



75.1 



86.3 



67.4 



18.9 



4 



.980 



.074 



.931 



.143 



73.1 



82.4 



65 2 



17.2 



5 



30.013 



.106 



.959 



.147 



71.7 



82.8 



63.0 



19.8 



6 



Sunday. 

















7 



.054 



.134 



30.013 



.121 



73.8 



83.2 



66.6 



16.6 



8 



.015 



.104 



29.950 



.154 



74.4 



85.2 



68.5 



16.7 



9 



29.989 



.074 



.923 



.151 



73.6 



84.0 



65.5 



18.5 



10 



.978 



.066 



.910 



.156 



75.8 



84.0 



69.0 



15.0 



11 



30.033 



.098 



.978 



.120 



75.1 



85.6 



65.8 



19.8 



12 



.058 



.129 



.996 



.133 



76.2 



86.8 



66.6 



20.2 



13 



Sunday. 

















14- 



.020 



.108 



.957 



.151 



73.3 



81.8 



66.6 



15.2 



15 



.049 



.146 



.993 



.153 



70.9 



81.0 



62.0 



19.0 



16 



.038 



.141 



.961 



.180 



70.0 



80.6 



61.0 



19.6 



17 



29.975 



.062 



.900 



.162 



71.1 



81.4 



61.0 



20.4 



18 



.948 



.024 



.908 



.116 



73.1 



83.0 



64.0 



19.0 



19 



.961 



.050 



.900 



.150 



76.1 



85.8 



68.2 



17.6 



20 



Sunday. 

















21 



.907 



29.990 



.838 



.152 



78.6 



89.4 



70.2 



19.2 



22 



.895 



.963 



.839 



.124 



79.8 



89.6 



74.0 



15.6 



23 



.960 



30.080 



.891 



.189 



78.0 



86.8 



72.2 



14 6 



24 



.968 



.030 



.878 



.152 



77.7 



89.2 



70.0 



19.2 



25 



.970 



.049 



.885 



.164 



73.9 



83.0 



68.0 



15.0 



26 



.931 



.020 



.855 



.165 



73.8 



82.4 



65.8 



16.6 



27 



Sunday. 

















28 



.900 



29.977 



.823 



.154 



76.6 



86.0 



68 2 



17. S 



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. 



