Meteorological Observations. 



lx.vi.il 



Abstract of the Results of the Hourly Meteorological Observation* 



taken, at (he Surveyor General's Office, Calcutta, 



in (he month of September 1809. 



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

 dependent thereon. 





O t3 



.Range of the Enron 



eter 



rfl 



Bange o 



* the Tempera - 





"S 43 



for ei 



,eh hour dur 



ng 



P3 -2 



lure for each 



hour 





"52 5 



the month. 





43 



Jb o 



during 



the month. 



Hour. 

















e3'H 0"5 



Max. 



Min. I 



)iff. 



gjj 



Max. 



Min. 



Dm; 























Inches. 



Inches. 



Inches. In 



ches. 



o 



o 



o 



o 



Mid- 



















night. 



29.707 



29.813 



29.605 



208 



81.5 



83.4 



79.2 



4.2 



1 



.694 



.788 



.599 



189 



81.3 



83.2 



79.2 



4 



2 



.685 



.775 



.588 



187 



81.0 



83.0 



79.0 



4.0 



3 



.676 



.766 



.580 



186 



80.7 



82.4 



78.8 



3.6 



4 



.668 



.760 



.569 



191 



80.4 



82.4 



78.5 



3.9 



5 



.680 



.780 



.585 



195 



80.2 



82.0 



78.0 



4.0 



6 



.692 



.799 



.607 



192 



80.2 



81.7 



78.0 



3.7 



7 



.715 



.82L 



.633 



188 



80.9 



83.0 



78.0 



5.0 



8 



.735 



.836 



.666 



170 



82.4 



84,7 



78.5 



6.2 



9 



.745 



.839 



.669 



170 



83.9 



86.5 



79.5 



7.0 



10 



.747 



.841 



.671 



170 



85.5 



87.8 



80.2 



7.6 



11 



.738 



.825 



.655 



170 



86.1 



89.3 



79.0 



10.3 



Noon. 



.716 



.798 



.641 



157 



86.2 



90.6 



79.0 



11.6 



1 



.687 



.777 



.609 



168 



86.6 



91.0 



80.0 



11.0 



2 



.657 



.739 



.572 



167 



86.8 



92.0 



81.0 



11.0 



3 



.638 



.717 



.549 



168 



86.0 



91.0 



81.0 



10.0 



4 



.629 



.718 



.546 



172 



85.3 



89.3 



81.0 



8.3 



5 



.631 



.740 



.541 



199 



84.8 



88.5 



80-2 



8.3 



6 



.615 



.746 



.561 



185 



83.7 



87-0 



79.5 



7.5 



7 



.663 



.759 



.576 



183 



83.0 



86.0 



79.9 



6.1 



8 



.692 



.787 



.595 



192 



82.5 



85.0 



79.7 



5.3 



9 



.712 



.800 



.615 



185 



82.2 



84,5 



79.7 



4.8 



10 



.718 



.815 



.605 



210 



81.8 



83.6 



79.5 



4,1 



11 



.716 



.814 



.608 



.206 



81.7 



83.5 



79.5 



4.0 



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. 



