Meteorological OLserrnlions 



xevi 



Abstract of the 'Results of the Hourly Meteorological Ohservations 



taken at the Surveyor General's Office, Calcuttay 



in the month of Decemher X'^l'd. 



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



dex^endent tliereon. 





^^ 



IJange 



of the Barometer 



r^ 



Eange of the Tempera- 







for eaeli hour 

 the montl 



during 

 1. 



.J 



ture for ench hour 

 during the month. 



Hour. 









p| 











imi 



Max. 



Min. 



Diff. 





Max. 



Min. 



DilF, 























Tnclies. 



Inches. 



Inches. 



Inches. 







o 



o 



o 



Mid- 



















night.. 



30.032 



30.123 



29.916 



0.207 



66.7 



73.4 



60.0 



13 4 



1 



.023 



.113 



.906 



.207 



66.1 



73.2 



^r^.^ 



14.4 



2 



.014 



.107 



.901 



.206 



65.4 



72.7 



58.0 



14 7 



3 



.004 



.101 



.893 



.208 



64.8 



72.0 



57.5 



14.5 



4 



.002 



.115 



.895 



.220 



64.2 



71.8 



57.0 



14.8 



5 



.014 



.125 



.910 



.215 



63.7 



71.0 



56.0 



15.0 



6 



.030 . 



.138 



.923 



.215 



63.2 



70.8 



55.5 



15.3 



7 



.050 



.148 



.936 



.212 



62.9 



70.4 



55.5 



14.9 



8 



.074 



.172 



.963 



.209 



64. (^ 



71.0 



56-5 



14.5 



9 



.098 



.197 



.985 



.212 



68.4 



73.5 



61.2 



12.3 



10 



.100 



.195 



.961 



.231 



71.8 



77.5 



64.3 



13.2 



11 



.081 



.175 



.946 



.229 



64.6 



80.5 



66.3 



14,2 



Noon. 



.050 



.138 



.921 



.217 



76.3 



81.2 



68.3 



12.9 



1 



.017 



.106 



.906 



.200 



77.5 



82.5 



70.0 



12.5 



2 



29.990 



.079 



.892 



.187 



78.1 



82.7 



70.3 



12.4 



3 



.976 



.065 



.862 



.203 



78.3 



82.5 



71.5 



11. (» 



4 



.970 



.0()0 



.862 



.198 



76.9 



81.3 



70.0 



11.3 



5 



.976 



.071 



.863 



.208 



75.4 



79.5 



69.0 



10.5 



6 



.990 



.077 



.874 



.203 



73.0 



78.0 



66.4 



W.i^ 



7 



30.006 



.098 



.886 



.212 



71.3 



76.7 



65.0 



11.7 



8 



.022 



.119 



.902 



.217 



70.0 



76.0 



63.5 



12.5 



9 



.036 



.136 



.916 



.220 



68.8 



75.5 



62.5 



13.0 



10 



.043 



.129 



.925 



.204 



67.8 



74.5 ' 



61.5 



13.0 



11 



.038 



.131 



.920 



.211 



67.1 



74.0 



60.5 



13.5 



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

 Thermometer Means are derived from the obseryations made at the several 

 hours during the month, ^ 



