Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January 1875. 



Latitude 22° 33' 1" North. Longitude 88° 20' 34." East. 



Height of the Cistern of the Standard Barometer above the sea level, 18.11 feet. 



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



dependent thereon. 





o ** 



-+3 -*-> 



Range 



3f the Barometer 



"3 ^ 



Eange 



of the Tempera- 







during the day. 





ture during the day. 



Date. 

















ci m 2J 









a & 













Max. 



Min. 



Diff. 





Max. 



Min. 



Diff 





Inches. 



Inches. 



Inches. 



Indies. 







o 







o 



1 



30.065 



30.139 



30.014 



0.125 



67.0 



76.3 



59.4 



16.9 



2 



.075 



.146 



.025 



.121 



67.6 



76.5 



60.5 



16.0 



3 



.056 



.137 



.003 



.134 



67.8 



77.3 



59.8 



17.5 



4 



29.975 



.060 



29.917 



.143 



69.3 



79.5 



62.0 



17.5 



5 



.953 



.032 



.865 



.167 



66.4 



75.5 



62.0 



13.5 



6 



30.016 



.084 



.957 



.127 



63.0 



70.5 



■ 56.8 



13.7 



7 



.056 



.134 



30.012 



.122 



63.6 



72.0 



56.9 



15.1 



8 



29.994 



.055 



29.941 



.114 



64.4 



72.4 



57.3 



15.1 



9 



.977 



.033 



.921 



.112 



65.7 



74.2 



58.4 



15.8 



10 



.985 



.058 



.940 



.118 



67.7 



76.8 



60.5 



16.3 



11 



.954 



.032 



.888 



.144 



69.1 



78.5 



62.4 



16.1 



12 



.892 



29.961 



.833 



.131 



70.8 



80.0 



64.5 



15.5 



13 



.879 



.952 



.833 



.119 



70.7 



78.0 



65.6 



12.4 



14 



.879 



.941 



.828 



.113 



70.3 



78.5 



64.2 



14.3 



15 



.904 



.968 



.860 



.108 



68.0 



76.2 



62.3 



13.9 



16 



.883 



.958 



.814 



.144 



66.8 



76.5 



59.3 



17.2 



17 



.861 



.924 



.824 



.100 



69.0 



79.0 



61.0 



18.0 



18 



.805 



.889 



.731 



.158 



71.6 



79.0 



65.7 



13.3 



19 



.813 



.885 



.726 



.159 



67.4 



71.3 



63.0 



8.3 



20 



.881 



.959 



.836 



.123 



65.6 



74.6 



60.0 



14.6 



21 



.893 



.953 



.837 



.116 



66.9 



7:^.2 



63.0 



10.2 



22 



.978 



30.057 



.933 



.124 



63.1 



71.0 



56.5 



14.5 



23 



.995 



.069 



.958 



.111 



62.2 



72.0 



53.8 



18.2 



21 



.999 



.065 



.954 



.111 



63.4 



73.6 



54.8 



18.8 



25 



.991 



.044 



.949 



.095 



65.7 



75.0 



56.4 



18.6 



26 



30.011 



.093 



.958 



.135 



62.8 



65.8 



60.0 



5.8 



27 



.028 



.104 



.989 



.115 



63.6 



71.2 



59.0 



12.2 



28 



.055 



.135 



30.013 



.122 



65.3 



74.2 



58.5 



15.7 



29 



.050 



.136 



29.993 



.143 



6 1,2 



73.2 



55.8 



174 



30 



.013 



.085 



.951 



.134 



65.5 



757 



55.5 



20.2 



31 



.033 



.085 



.978 



.107 



65.3 



70.5 



60.0 



10.5 



The Mean Height of the Barometer, as likewise (lie Dry and Wet Dnlh 

 Thermometer Means are derived, from the hourly observations, made ai (he 

 soveral hours during the day. 



