Meteorological Observations. 



xix 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of March 1866. 



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

 dependent thereon. 





O c3 



.Range < 



)f the Barometer 



rO 



Range of the Tempera- 







for eacli hour during 



As 



ture for each hour 





the month 







during 



the month. 



Hour. 









£g 











3pp& 



Max. 



Min. 



Diff. 



§1 



Max. 



Min. 



Diff. 













i H 











Inches. 



Inches. 



Inches. 



Indies. 



















Mid- 



















night. 



29.821 



30.007 



29.706 



0.301 



79.1 



82.8 



72.5 



10.3 



1 



.807 



.001 



.696 



.305 



78.6 



82.0 



72.4 



9.6 



2 



.794 



29.985 



.682 



.303 



78.1 



81.6 



72.8 



8.8 



3 



.784 



.978 



.671 



.307 



77.5 



81.5 



72.8 



8.7 



4 



.781 



.982 



.668 



.314 



77.2 



81.6 



72.8 



8.8 



5 



.796 



.995 



.687 



.308 



76.8 



81.4 



71.6 



9.8 



6 



.815 



30.009 



.707 



.302 



76.4 



81.1 



71.5 



9.6 



7 



.839 



.025 



.730 



.295 



76.7 



81.4 



71.4 



10.0 



8 



.869 



.043 



.748 



.295 



78.8 



82.8 



73.8 



9.0 



9 



.885 



.055 



.761 



.294 



81.9 



86.6 



76.6 



10.0 



10 



.889 



.060 



.751 



.309 



85.1 



89.8 



80.0 



9.8 



11 



.878 



.056 



.769 



.287 



87.9 



92.4 



83.8 



8.6 



Noon. 



.851 



.031 



.740 



.291 



90.3 



94.6 



87.6 



7.0 



1 



.818 



.003 



.711 



.292 



92.0 



96.0 



89.2 



6.8 



2 



.784- 



29.976 



.666 



.310 



93.4 



97.4 



91.0 



6.4 



3 



.761 



.957 



.642 



.315 



94.1 



98.4 



90.6 



7.8 



4 



.748 



.933 



.625 



.308 



94,0 



98.6 



89.8 



8.8 



5 



.745 



.939 



.619 



.320 



92.5 



97.4 



87.6 



9.8 



6 



.752 



.950 



.624 



.326 



88.9 



93.6 



84.6 



9.0 



7 



.769 



.964 



.633 



.331 



86.0 



90.6 



82.6 



8.0 



8 



.793 



.990 



.666 



.324 



84.0 



87.0 



81.6 



5.4 



9 



.819 



30.009 



.693 



.316 



82.1 



84.8 



73.8 



11.0 



10 



.830 



.021 



.707 



.314 



80.9 



83.8 



78.2 



7.6 



11 



.831 



.019 



.706 



.303 



79.8 



83.0 



74.2 



8.8 



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

 Thermometer Means are derived from the observations made at the several 

 hours during the month. 



