Meteorological Observations. 



Ixvii 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General '3 Office, Calcutta, 

 in the month of February, 1860. 



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

 dependent thereOD. 



Hour. 



Height of 

 Barometer 

 12° Faht. 



Ranse of the Barometer for 



each hour during the 



month. 



3 V 



P = 



Range of the Tempera- 

 ture for eiich hour 

 during the 

 month. 



















5 2 



Mas. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





s" 









e". 











Inches. 



Inches. 



Inches. 



Inches. 



















Mid- 

 night. 



29.920 



30.021 



29.733 



0.28S 



71.6 



76.3 



68.1 



8.2 



1 



.913 



.014 



.716 



.298 



70.9 



75.0 



66.8 



82 



2 



.902 



.001 



.714 



.287 



70.2 



74.6 



66.8 



7.8 



3 



.889 



29.997 



.711 



.286 



69.9 



74.0 



65.6 



8.4 



4 



.893 



.989 



.704 



.285 



69.5 



73.6 



64.8 



8.8 



5 



.901 



.999 



.704 



.295 



68.8 



72.6 



64.9 



7.7 



6 



.915 



30.017 



.717 



.300 



68.3 



73.2 



63.8 



9.4 



7 



.934 



.043 



.735 



.308 



68.2 



73.0 



63.6 



9.4 



8 



.962 



.062 



.7S2 



.280 



70.9 



74.2 



66.0 



8.2 



9 



.985 



.095 



.805 



.290 



73.6 



78.0 



67.8 



10.2 



10 



.993 



.092 



.815 



.277 



76.7 



81.4 



71.6 



9.8 



11 



.979 



.076 



.803 



.273 



79.5 



84.8 



74.0 



10.8 



Noon. 



.954 



.047 



.776 



.271 



82.0 



88.0 



75.2 



12.8 



1 



.921 



.020 



.756 



.264 



83.9 



90.4 



77.4 



13.0 



2 



.888 



29.997 



.726 



.271 



85.1 



91.8 



79.0 



12.8 



3 



.863 



.966 



.706 



.260 



85.6 



93.4 



80.6 



12.8 



4 



.852 



.963 



.692 



.271 



84.8 



92.8 



79.0 



13.8 



5 



.852 



.947 



.688 



.259 



83.2 



91.2 



77.8 



13.4 



6 



.860 



.966 



•690 



.276 



80.3 



85.5 



75.6 



9.9 



7 



.878 



.986 



.704 



.282 



77.5 



81.6 



74.0 



7.6 



8 



.902 



30.013 



.733 



.280 



75.7 



79.8 



72.2 



7.6 



9 



.920 



.032 



.751 



.281 



74.5 



79.3 



71.6 



7.7 



10 



.923 



.026 



.756 



.270 



73.5 



78.2 



69.8 



8.4 



11 



.919 



.027 



.751 



.276 



72.9 



77.5 



69.6 



7.9 



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

 Thermometers are derived from the observations made at the several hours 

 during the month. 



