Meteorological Observations. 



l.wiii 



Abstract of the Results of the Hourly Meteorological Observat'n 

 taken at (lie Surrei/or General's Office, Calcutta, 

 in the month of September J 809. 



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

 dependent thereon. 





O <3 



.Range 



of the Barometer 



£ 



ivtnige of the Tempera- 





S £ • 



for each hour during 



£ f* 



n 3 



ture for each 



lour 





'Z ~ * 



the month 







during 



the month. 



Hour. 









p a 











«3 r- i CO 



Max. 



Min. 



Diff. 



H © 



c3 ^jh 



Max. 



Min. 



DM*. 























Inches. 



Indies. 



Indies. 



Inches. 



O 



o 



o 







Mid- 



















night. 



29.707 



29.813 



29.605 



0.208 



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 



.821 



.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.O 



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 



.645 



.746 



.561 



.185 



83.7 



87.0 



79.5 



7.5 



7 



.663 



.759 



.576 



.183 



83.0 





7 1 .'.'.' 



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 



KA.O 



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 liulb 



Thermometer Means are 

 hours during the month. 



derived from the observations made at the several 



