Meteorological Observa tions. 



lxv 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of September 1867. 



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



Height of the Cistern of the Standard Barometer above the sea level, 18.11 feet, 



Daily Means, &c. of the Observations and of the Hygrometrical elements; 

 dependent thereon. 





+3 "^ 



Range of the Barometer 



rO 

 3 £ 



Bange of the Tempera- 





to S -3 



during the day. 



fig 



C fa 



ture dm 



•ing the day. 



Date. 

















S g w 



Max. 



Min. 



Diff. 



8 J 



Max. 



Min. 



Diff. 













a^ 











Inches. 



Inches. 



Inches. 



Inches. 



o 











o 



1 



29.577 



29.636 



29.489 



0.147 



86.8 



92.5 



82.8 



9.7 



2 



.588 



.632 



.513 



.089 



84.0 



88.6 



81.5 



7.1 



3 



.619 



.670 



.574 



.096 



82.5 



88.9 



79.8 



9.1 



4 



.648 



.708 



.581 



.127 



82.3 



88.0 



79.9 



8.1 



5 



.673 



.734 



.614 



.120 



80.6 



81.3 



78.5 



5.8 



6 



.711 



.771 



.661 



.110 



80.1 



82.5 



78.0 



4.5 



7 



.710 



.794 



.640 



.154 



83.4 



88.5 



79.0 



9.5 



8 



.686 



.758 



.601 



.157 



84.3 



89.5 



80.0 



9.5 



9 



.635 



.701 



.549 



.152 



85.2 



90.8 



80.9 



9.9 



10 



.630 



.695 



.559 



.136 



86.0 



92.0 



81.5 



10.5 



11 



.659 



.722 



.552 



.170 



86.0 



89.6 



82.0 



7.6 



12 



.675 



.731 



.606 



.125 



86.4 



92.5 



81.9 



10.6 



13 



.635 



.691 



.575 



.116 



84.7 



92.2 



81.5 



10.7 



14 



.550 



.617 



.455 



.162 



85.2 



92.4 



81.5 



10.9 



15 



.480 



.537 



.413 



.124 



81.6 



86.6 



78.5 



8.0 



16 



.425 



.491 



.343 



.148 



80.8 



84.6 



78.5 



6.1 



17 



.467 



.551 



.374 



.177 



81.5 



84.5 



79.8 



4.7 



18 



.561 



.628 



.505 



.123 



82.0 



86.6 



79.5 



7.1 



19 



.612 



.676 



.565 



.111 



83.2 



86.0 



80.0 



6.0 



20 



.630 



.672 



.591 



.081 



81.5 



86.5 



77.4 



9.1 



21 



.653 



.711 



.605 



.106 



79.8 



83.0 



77.0 



6.0 



22 



.682 



.745 



.638 



.107 



79.8 



85.0 



76.0 



9.0 



23 



.720 



.781 



.661 



.120 



81.8 



88.2 



76.5 



11.7 



24 



.735 



.804 



.665 



.139 



83.6 



88.6 



78.6 



10.0 



25 



.688 



.750 



.601 



•149 



85.2 



90.7 



80.5 



10.2 



26 



.663 



.711 



.591 



.120 



86.3 



91.7 



82.0 



9.7 



27 



.714 



.786 



.660 



.126 



85.4 



92.0 



80.0 



12.0 



28 



.772 



.840 



.719 



.121 



83.4 



90.7 



80.5 



10.2 



29 



.793 



.848 



.737 



.111 



81.8 



85.5 



79.8 



5.7 



30 



.799 



.844 



.764 



.080 



79.1 



81.5 



78.0 



3.5 



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

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

 the day. 



