Meteorological Observations. 



lviii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of August 1869. 



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



Height of the Cistern of the Standard Barometer ahove the sea level, 18.11 feet. 



Daily Means, &e. of the Observations and of the Hygrornetrieal elements 

 dependent thereon. 





° S 



Range of the Bai 



•omefcer 





Bange of the Tempera- 







dui 



ing the day. 





ture during the day. 



Date. 

















,_, Win 









s=) fc 











3 S TO 



Max. 



Min. 



Diff. 



£J 



Max. 



Min. 



Diff. 













g^ 











Inches. 



Inches. 



Inches. 



Inches. 







o 



o 



o 



1 



29.648 



29.686 



29.604 



0.082 



82.2 



83.5 



80.3 



3.2 



2 



.686 



.728 



.646 



.082 



82.5 



85.3 



79.2 



6.1 



3 



.728 



.798 



.672 



.126 



84.8 



89.8 



81.0 



8.8 



4 



.730 



.793 



.654 



.139 



85.7 



90.6 



82.2 



8.4 



5 



.655 



.738 



.569 



.169 



85.4 



90.5 



81.8 



8.7 



6 



.583 



.640 



.500 



.140 



84.1 



89.8 



79.5 



10.3 



7 



.604 



.678 



.534 



.144 



83.1 



88.5 



79.5 



9.0 



8 



.680 



.738 



.625 



.113 



83.6 



88.2 



80.0 



8.2 



9 



.710 



.776 



.652 



.124 



83.3 



85.5 



81.3 



4.2 



10 



.678 



.724 



.619 



.105 



84.9 



89.0 



82.0 



7.0 



11 



.713 



.757 



.667 



.090 



84.9 



90.4 



82.0 



8.4 



12 



.747 



.803 



.683 



.120 



81.1 



84.4 



77.3 



7.1 



13 



.776 



.834 



.719 



.115 



84,4 



89.5 



80.0 



9.5 



14 



.756 



.836 



.676 



.160 



85.4 



90.7 



82.0 



8.7 



15 



.691 



.760 



.602 



.158 



85.7 



91.6 



81.3 



10.3 



16 



.646 



.699 



.567 



.132 



86.1 



91.5 



82.0 



9.5 



17 



.604 



.667 



.525 



.142 



85.8 



89.5 



83.6 



5.9 



18 



.561 



.618 



.481 



.137 



85.7 



93.4 



81.6 



11.8 



19 



.622 



.676 



.574 



.102 



85.0 



91.0 



82.7 



8.3 



20 



.672 



.726 



.611 



.115 



85.9 



90.6 



81.5 



9.1 



21 



.684 



.738 



.617 



.121 



84.3 



89.2 



81.7 



7.5 



22 



.608 



.695 



.516 



.179 



84.9 



90.4 



81.6 



8.8 



23 



.511 



.575 



.420 



.155 



84.7 



89.5 



81.8 



7.7 



24 



.503 



.560 



.446 



.114 



84.2 



88.5 



82.2 



6.3 



25 



.571 



.636 



.523 



.113 



84.1 



88.2 



81-7 



6.5 



26 



.633 



.677 



.581 



.096 



85.1 



90.0 



81.5 



8.5 



27 



.641 



.706 



.563 



.143 



85.7 



90.7 



81.6 



9.1 



28 



.609 



.666 



.527 



.139 



86.0 



91.2 



82.0 



9.2 



29 



.592 



.633 



.541 



.092 



84.5 



89.0 



82.0 



7.0 



30 



.614 



.653 



.567 



.086 



83.2 



85.8 



80.7 



5.1 



31 



.643 



.693 



.594 



.099 



83.4 



87.5 



80.0 



7.5 



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

 Thermometer Means arc derived, from the hourly observations, made during 

 the day. 



