Meteorological Observations. 



in 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January, 1857. 



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

 dependent thereon. 



Hour. 



Height of 

 Barometer 

 ]2° Faht. 



Range 

 for ea 



of the Ba 

 ch hour c 

 the month 



ometer 

 uring 



J3 £ 



5 g 



Range of the Temperature 

 for each hour during 

 the month. 



















as *•> =3 



Max. 



Min. 



Diff. 



C 2 



Max. 



Min. 



Diff. 





s 









g 











Inches. 



Inches. 



Inches. 



Inches. 







o 











Mid- 



















night. 



30.022 



30.148 



29.874 



0.274 



64.2 



70.5 



56.7 



13.8 



1 



.014 



.140 



.870 



.270 



63.4 



69.8 



56.0 



13.8 



2 



.010 



.118 



.853 



.265 



62.5 



69.0 



55.0 



14.0 



3 



29998 



.106 



.841 



.265 



62.2 



68.6 



54.8 



13.8 



4 



.995 



.102 



.841 



.261 



61.5 



68.2 



54.2 



140 



5 



.998 



.114 



.847 



.267 



60.9 



67.8 



53.5 



14.3 



6 



30.020 



.133 



.856 



.277 



60.5 



67.1 



53.0 



14.1 



7 



.043 



.155 



.883 



.272 



60.2 



66.4 



52.8 



136 



8 



.072 



.191 



.917 



.274 



62.0 



68.6 



54.6 



14.0 



9 



.096 



.207 



.936 



.271 



65.9 



72.3 



59.0 



133 



10 



.102 



.214 



.949 



.265 



69.1 



75.4 



62.0 



13.4 



11 



.086 



.201 



.930 



.271 



71.9 



79.2 



65.3 



13.9 



Noon. 



.055 



.172 



.909 



.263 



74.6 



81.4 



67.8 



13.6 



1 



.018 



.143 



.876 



.267 



76.5 



83.4 



70.3 



13.1 



2 



29 993 



.123 



.853 



.270 



77.5 



84.4 



71.8 



126 



3 



.977 



.104 



.834 



.270 



77.9 



84.9 



72.2 



12 7 



4 



.971 



.108 



.830 



.278 



76.1 



83.4 



70 9 



12 5 



5 



.973 



.113 



.820 



.293 



74.7 



81 6 



69.0 



12.6 



6 



.980 



.121 



.818 



.303 



72 



78.8 



66.2 



12.6 



7 



.997 



.126 



.838 



.288 



70.0 



76 



64.3 



11.7 



8 



30.017 



.152 



.856 



.296 



68 4 



74.8 



616 



13 2 



9 



.030 



.163 



.873 



.290 



67.2 



73 6 



60.6 



13.0 



10 



.035 



.177 



.879 



.298 



661 



72 6 



594 



13.2 



11 



.032 



.162 



875 



.287 



65.5 



716 



58-5 



13.1 



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

 Thermometers are derived from the Observations made al the several hours 

 during the month. 



