Meteorological Observations. 



lxv 



Abstract of the Besults of the Hourly Meteorological Observations 



taken at the Surveyor GeneraVs Office, Calcutta, 



in the month of September, 1864. 



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



Feet. 

 Height of the Cistern of the Standard Barometer above the Sea-level, 18.11. 



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

 dependent thereon. 





o <o 



Range 



of the Barometer 





•2 s -i 



J* Org 



during the d 



a y- 













Date. 











£3 03 



Max. 



Min. 



Diff. 





1" 











Inches. 



Inches. 



Inches. 



Inches. 



1 



29.678 



29.731 



29.626 



105 



2 



.675 



.729 



.614 



.115 



3 



.663 



.715 



6 608 



.107 



4 



Sunday. 









5 



.655 



.727 



.553 



.174 



6 



.590 



.640 



.511 



.129 



7 



.572 



.655 



.500 



.155 



8 



.571 



.641 



.507 



.134 



9 



.504 



.578 



.420 



.158 



10 



.441 



.555 



.341 



.214 



11 



Sunday. 









12 



.630 



.681 



.588 



.093 



13 



.678 



.731 



.628 



.103 



14 



.729 



.801 



.663 



.138 



15 



.755 



.821 



.643 



.178 



16 



.710 



.774 



.626 



.148 



17 



.710 



.783 



.649 



.134 



18 



Sunday. 









19 



.665 



.749 



.576 



.173 



20 



.605 



.663 



.527 



.136 



21 



.614 



.663 



.576 



.087 



22 



.634 



.683 



.588 



.095 



23 



.677 



.729 



.610 



.119 



24 



.746 



.808 



.694 



.114 



25 



Sunday. 









26 



.917 



.983 



.860 



.123 



27 



.882 



.956 



.805 



.151 



28 



.828 



.899 



.744 



.155 



29 



.817 



.871 



.754 



.117 



30 



.833 



.898 



.767 



.131 



ffl § 

 p a 



82.8 

 83.2 

 84.1 



85.9 

 85.7 

 86.3 

 85.6 

 82.7 

 82.0 



83.9 



85.0 

 84.6 

 85.4 

 83.6 

 81.9 



82.1 

 82.6 

 81.1 

 80.3 



82.2 

 82.8 



83.3 



84.4 

 85.8 

 84.8 

 85.8 



Range of the Tempera- 

 ture during the day. 



Max. Min. Diff, 



87.4 

 89.2 



91.8 

 92.2 

 91.9 

 93.0 

 84.4 

 85.2 



87.3 

 91.2 



90,8 

 90.6 

 88.0 

 87.0 



88.2 

 85.9 

 85.2 

 82.3 



87.4 



89.3 

 89.8 

 90.8 

 91.8 

 90.8 



79.8 

 79.8 

 80.8 



81.6 

 81.8 

 82.1 



82.6 

 80.8 

 79.2 



81.2 

 80.8 

 81.0 

 81.8 

 81.0 

 78.8 



78.4 

 80.0 

 77.9 



78.2 

 78.4 

 79.4 



79.6 

 80.0 

 81.4 

 81.8 

 81.2 



8.6 

 7.6 



10.2 



10.4 



9.8 



10.4 



3.6 



6.0 



6.1 



10.4 

 9.8 

 8.8 

 7.0 

 8.2 



9.8 

 59 



7.3 

 4.1 

 9.0 

 7.4 



9.7 

 9.8 

 9.4 

 10.0 

 9.6 



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. 



