Meteorological Observations. 



Ixvii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office. Calcutta, 

 in the month of September, 1864. 



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

 dependent thereon. 





' o S ^ 



Range 



of the Ba 



ometer 



■3 3 



1 Rang 



a , of the Temperature 





■? s -^ 



for each hour d 



uring 



PQ 2 



for 



each hour during 





.^?f*< 





:he month 





fr-i 





the month 





Hour. 



ffl ?q (m 









5 g 

























flu 00 



0) w ca 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





§ 









j§ 











Indies. 



Inches. 



Inches. 



Inches. 



O 















Mid- 

 night. 



29.692 



29.916 



29.446 



0.470 



81.8 



84.4 



78.7 



5.7 



1 



.684 



.905 



.402 



.503 



81.6 



84.2 



78.4 



5.8 



2 



.674 



.891 



.388 



.503 



81.4 



83.8 



78.6 



5.2 



3 



.656 



.886 



.368 



.518 



81.3 



83.6 



78.5 



5.1 



4 



.666 



.892 



.341 



.551 



81.2 



83.1 



78.6 



4.5 



5 



.678 



.908 



.345 



.563 



80.8 



83.2 



77.9 



5.3 



6 



.688 



.930 



.368 



.562 



80.7 



82.6 



78.4 



4.2 



7 



.708 



.945 



.381 



.564 



81.5 



83.8 



79.2 



4.6 



8 



.726 



.974 



.422 



.552 



83,1 



86.2 



79.3 



6.9 



9 



.737 



.982 



.442 



.540 



84.3 



87.2 



80.8 



6.4 



10 



.740 



.983 



.459 



.524 



85.6 



88.8 



80.5 



83 



11 



.727 



.967 



.473 



.494 



86.5 



89.8 



81.8 



8.0 



Noon. 



.707 



.952 



.461 



.491 



87.1 



91.4 



80.6 



10.8 



1 



.681 



.918 



.445 



.473 



87.6 



93.0 



82.0 



11.0 



2 



.654 



.883 



.433 



.450 



87,4 



92.2 



79.0 



13.2 



3 



.634 



.866 



.427 



.439 



86.8 



91.9 



78.8 



13.1 



4 



.622 



.860 



.420 



.440 



86.4 



91.6 



79.0 



12.6 



5 



.629 



.866 



.434 



.432 



85.4 



89.5 



80.2 



9.3 



6 



.642 



.878 



.427 



.451 



84.4 



88.0 



80.2 



7.8 



7 



.658 



.893 



.449 



.444 



83.7 



87.2 



79.8 



7.4 



8 



.682 



.911 



.462 



.449 



83.2 



86.2 



79.6 



6.6 



9 



.702 



.925 



.480 



.445 



82.8 



85.3 



79.8 



5.5 



10 



.712 



.933 



.482 



.451 



82.6 



84.8 



79.6 



5.2 



11 



.707 



.943 



.465 



.478 



82.2 



84.4 



79.6 



4.8 



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

 mometer Means are derived from the Observations made at the several hours 

 during the month. 





