Meteorological Observations. 



jfXVll 



Alstracl of the Results of the Hourly Meteorological Observations* 

 taken at the Surveyor General's Office, Calcutta 3 

 in the month of April 1870. 



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



dependent thereon. 





O s3 



.Range of the Barometer 



r£5 



Range of the Tempera- 







for each hour c 



uring 



w S 



ture for each hour 







t 



iie month 







during 



the month. 



Hour. 

















C3 t— 1 CO 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 























Inches. 



Inches. 



Inches. 



Inches. 















o 



Mid- 



















night. 



29.760 



29.849 



29.654 



0.195 



79.1 



84.5 



70.4 



14.1 



1 



.752 



.814 



.679 



.165 



78.6 



83.6 



69.2 



144 



2 



.742 



.836 



.668 



.168 



78-2 



83.0 



69.2 



13.8. 



3 



.733 



.830 



.657 



.173 



77.8 



82.2 



69.0 



13.2 



4 



.733 



.840 



.650 



.190 



77.6 



82.4 



68.5 



13.9 



5 



.747 



.868 



.663 



.205 



77.1 



81.0 



68.0 



13.0 



G 



.7(50 



.882 



.678 



.204 



76.6 



81.0 



67.7 



13.3 



7 



.788 



.902 



.700 



.202 



77.3 



81.8 



68.0 



13.8 



8 



.811 



.926 



.723 



.203 



80.4 



84.5 



72.0 



12.0 



9 



.826 



.943 



.734 



.209 



83.7 



87.7 



75.0 



12.7 



10 



.826 



.948 



.743 



.205 



86.8 



90.2 



77.4 



12.8 



11 



.816 



.935 



.724 



.211 



89.5 



93.2 



79.1 



14.1 



Noon. 



.797 



.923 



.706 



.217 



91.3 



95.0 



80.2 



14.8. 



1 



.767 



.880 



.678 



.202 



92.9 



97.8 



81.7 



16.1 



2 



.735 



.849 



.657 



.192 



93.8 



98.0 



83.0 



15.0 



3 



.708 



.822 



.618 



.204 



93.8 



98.5 



76.0 



22.y 



4 



.689 



.815 



.583 



.232 



93.3 



98.6 



81.7 



16.9 



5 



.688 



.812 



.568 



.214 



91.2 



97.0 



74-8 



22.2 



6 



.698 



.823 



.585 



.238 



88.6 



94,0 



77.5 



16.5 



7 



.718 



.848 



.637 



.211 



85.5 



90.5 



72.8 



17.7 



8 



.743 



.847 



.066 



.181 



83.3 



89.0 



71.5 



17.5 



9 



.769 



.868 



.679 



.189 



81.5 



87.5 



72.0 



15.5 



10 



.780 



.880 



.699 



.181 



80.8 



87.0 



72.0 



15.0 



11 



.771 



.857 



.702 



.155 



80.0 



85.6 



70.5 



15.1 



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. 



