Meteorological Observations, 



iciu 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



hi the month of December 1869. 



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

 dependent tliereon. 





O c3 



.Range 



of the Barometer 



rO 



Bange of the Tempera- 





'3 Sr5 



for each hour < 



luring 





ture for each 



hour 





1 



;he month 







during 



the month. 



Hour. 



*2o 



















es rH CO 



Max. 



Min. 



Diff. 



£ 5 



Max. 



Min. 



Diff. 





fc-i ° 









^ 











Inches. 



Inches. 



Inches. 



Inches. 







o 



o 



o 



Mid- 



















night. 



29.992 



30.054 



29.886 



0.168 



65.1 



69.8 



59.8 



10.O 



i 



.985 



.048 



.881 



.167 



64.4 



69.0 



59.0 



10 0- 



2 



.979 



.042 



.880 



.162 



63-8 



68.5 



58.8 



9.7 



3 



.973 



.037 



.877 



.160 



63.1 



67.4 



58.4 



9.0 



4 



.969 



.042 



.871 



.171 



62.5 



67.4 



58.2 



9.2 



5 



.979 



.058 



.875 



.183 



62.0 



67.3 



57.5 



9.8 



6 



.993 



.078 



.887 



.191 



61.5 



67.3 



57.0 



10.3 



7 



30.013 



.087 



.899 



.188 



61.4 



67.4 



56.8 



10.6 



8 



.041 



.114 



.936 



.178 



63.3 



68.5 



58.8 



9.7 



9 



.065 



.134 



.954 



.180 



66.5 



70.5 



61.5 



9.0 



10 



.069 



.139 



.957 



.182 



70.3 



73.5 



64.5 



9.0 



11 



.050 



.114 



.943 



.171 



73.4 



76.4 



68.5 



7.9 



Noon. 



.019 



.085 



.911 



.174 



75.3 



78.0 



70.2 



7.8 



1 



29.985 



.052 



.875 



.177 



76.6 



78.8 



72.0 



6.8 



2 



.959 



.021 



.851 



.170 



77.5 



79.5 



73.3 



6.2 



3 



.944 



.006 



.834 



.172 



77.5 



79.5 



74.0 



5.5 



4 



.940 



.011 



.832 



.179 



76.2 



78.5 



72.0 



6.5 



6 



.947 



.023 



.839 



.184 



74.7 



77.0 



707 



6.3 



6 



.958 



.030 



.845 



.185 



71.9 



74.8 



68.0 



6.8 



7 



.975 



.041 



.863 



.178 



70.1 



73.0 



66.0 



7.0 



8 



.991 



.057 



.880 



.177 



68.5 



71.5 



63.5 



8.0 



9 



30.004 



.068 



.894 



.174 



67.3 



70.5 



63.0 



7.5 



10 



.009 



.072 



.899 



.173 



66.3 



69.5 



61.5 



8.0 



11 



.003 



.059 



.890 



.169 



65.4 



68.8 



60.0 



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. 



