Meteorological Observations. 



X\ 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta^ 



in the month of February 1870. 



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

 dependent thereon. 



tfH 



+a 





o 



rf 







h 

















bi 







CD 



w 



s 



o 









pq 



CO 





+2 





Eange of the Barometer 



for each hour during 



the month. 



Max. 



Min. 



DifT. 



CD 



A ° 



P s 



Pi <D 





Inches. 



Inches. 



Inches. 



Inches. 



Mid- 











night. 



29.926 



30.011 



29.793 



0.218 



1 



.918 



.004 



.790 



.214 



2 



.909 



29.999 



.763 



.236 



3 



.900 



.993 



.753 



.240 



4 



.893 



.995 



.742 



.253 



5 



.904 



30.018 



.749 



.269 



6 



.922 



.029 



.757 



.272 



7 



.943 



.066 



.776 



!290 



8 



.969 



.086 



.799 



.287 



9 



.994 



.107 



.824 



.283 



10 



30.005 



.110 



.836 



.274 



11 



29.989 



.089 



.823 



.266 



Noon. 



.961 



.059 



.796 



.263 



1 



.929 



.030 



.774 



.256 



2 



.897 



29.996 



.750 



.246 



3 



.875 



.975 



.731 



.244 



4 



.865 



.941 



.731 



.210 



5 



.869 



.948 



.737 



.211 



6 



.878 



.955 



.751 



.204 



7 



.892 



.970 



.766 



.204 



8 



.911 



.983 



.782 



.201 



9 



.926 



30.001 



.790 



.211 



10 



.935 



.018 



.799 



.219 



11 



.934 



.013 



.798 



.215 



69.4 

 68.7 

 68-0 

 67.4 

 66.8 

 66.2 

 65.7 

 65.4 

 67.8 

 71.8 

 75.7 

 79.3 



81.5 

 83.3 

 84,5 

 85.1 

 84.6 

 83.4 

 80.1 

 76.7 

 74,5 

 73.0 

 71.7 

 70.7 



Range of the Tempera- 

 ture for each hour 

 during the month. 



Max. 



Min. 



Diff. 



o 



o 



75.7 



63.0 



75.2 



62.6 



74.6 



62.0 



73.8 



61.3 



73.2 



60.0 



72.5 



59.0 



72.4 



58.2 



72.0 



57.6 



73.0 



60.6 



76.5 



65.0 



79.0 



70.4 



83.0 



74.0 



85.0 



76.5 



86.8 



78.5 



88.0 



79.7 



88.0 



80.2 



88.2 



79.2 



87.0 



78-3 



83.5 



75.0 



80.5 



71.5 



78.8 



68.9 



77.5 



67.5 



77.3 



66.5 



76.2 



65.0 



12.7 

 12 6 

 12.6 



12.5 

 13.2 

 13.5. 

 14,2 

 14.4 

 12.4 

 11.5 

 8.6 

 9.0< 



8.5 



8.3 



8.3 



7.8 



9.0 



8.7 



8.5 



9.0 



9.9 



10.0 



10.8 



11.2 



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

 Thermometer Means are derived from the observations made at the several 

 i hours during the mouth. 



