Meteorological Observations. 



xlix 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 



in the month of July, 1865. 

 Latitude 22° 33' 1" North. Longitude 88° 20' 34" East. 



Height of the Cistern of the Standard Barometer above the Sea-level, 18 ft. 11 in. 



Daily Means, &c. of the Observations and of the Hygroruetrical elements 

 dependent thereon. 





"o 3 









£ ^ 













Range of the Barometer 

 during the day. 





Range of the Tempera- 

 ture during the clay. 













p a 









Date. 

















a J -g 



Max. 



Min. 



Diff. 



a ja 



Max. 



Min. 



Diff. 





1" 









S 











Inches. 



Inches. 



Inches. 



Inches. 



O 















1 



29.523 



29.584 



29.465 



0.119 



84.3 



«8.6 



80.8 



7.8 



2 



.550 



.590 



.487 



.103 



85.2 



90.8 



81.7 



9.1 



3 



.548 



.596 



.477 



.119 



85.5 



92.6 



82.0 



10.6 



4 



.494 



.573 



.417 



.156 



85.0 



89.5 



82.0 



7.5 



5 



.445 



.484 



.381 



.103 



84.6 



88.5 



81.4 



7.1 



6 



.455 



.490 



.410 



.080 



84.6 



88.3 



81.6 



' 6.7 



7 



.440 



.484 



.380 



.104 



83.7 



86.9 



81.6 



5.3 



8 



.434 



.483 



.3S8 



.095 



83.4 



8S.0 



80.2 



7.8 



9 



.457 



.506 



.411 



.095 



84.2 



89.0 



81.0 



8.0 



10 



.494 



.547 



.456 



.091 



85.4 



91.4 



81.6 



9.8 



11 



.539 



.605 



.482 



.123 



83.8 



90.1 



78.0 



12.1 



12 



.522 



.577 



.444 



.133 



81.4 



85.0 



78.4 



6.6 



13 



.512 



.553 



.465 



.088 



84.2 



91.2 



81.4 



9.8 



14 



.537 



.592 



.483 



.109 



84.8 



90.6 



79.0 



11.6 



15 



.535 



.587 



.482 



.105 



82.6 



85.6 



79.6 



6.0 



16 



.524 



.562 



.486 



.076 



82 5 



87.1 



79.2 



7.9 



17 



.536 



.587 



.495 



.092 



82.7 



85.6 



80.0 



5.6 



18 



.558 



.597 



.503 



.094 



84.2 



87.4 



81.8 



5.6 



19 



.540 



.585 



.479 



.106 



85.4 



90.5 



81.4 



9.1 



20 



.582 



.631 



.536 



.095 



85.2 



88.6 



82.6 



6.0 



21 



.598 



.656 



.537 



.119 



85 3 



8S.9 



82.9 



6.0 



22 



.604 



.655 



.557 



.098 



85.7 



90.8 



82.5 



8.3 



23 



.640 



.699 



.585 



.114 



85.2 



89.6 



80.2 



9.4 



24 



.687 



.739 



.628 



.111 



83.5 



89.0 



79.S 



9.2 



25 



.725 



.774 



.666 



.108 



81.7 



83.8 



80 2 



3.6 



26 



.719 



.772 



.678 



.094 



83.4 



88 4 



79.5 



8.9 



27 



.708 



.758 



.659 



.099 



83.2 



87.7 



79.8 



7.9 



28 



.749 



.803 



.700 



.103 



83.3 



87.6 



79.4 



8.2 



29 



.759 



.798 



.707 



.091 



82.1 



85.2 



78.5 



6.7 



30 



.714 



.772 



.646 



.126 



82.0 



88.4 



77.4 



11.0 



31 



.678 



.726 



.601 



.125 



82.6 



88.6 



78.8 



9.8 



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

 mometer Means are derived from the hourly Observations made during the day. 



