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 1866. 



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. 





o *« 



Range of the Barometer 



'h Ph 



Range of the Tempera- 





% "8 ^ 



during the day. 



«3 



m a 



ture dui 



•ing the day. 



Date. 

















ri ^M 









a fc 











~ - CO 



Max. 



Mia. 



Diff. 



!j 



Max. 



Min. 



Diff. 













gH 











Inches. 



Inches. 



Inches. 



Inches. 



o 















1 



29.602 



29.642 



29.551 



0.091 



77.7 



81.0 



75.6 



5.4 



2 



.5;) 7 



.646 



.537 



.109 



76.2 



77.8 



75.2 



2.6 



3 



.569 



.6 3 



.517 



.09(5 



79.1 



85.6 



71.4 



11.2 



4 



.538 



.576 



.476 



.100 



81.2 



85.4 



78.0 



7.4 



5 



.529 



•580 



.484 



.096 



81.3 



86.6 



77.4 



9.2 



6 



.604 



.665 



.561 



.101 



8L6 



87.6 



78.4 



9.2 



7 



.635 



.698 



.570 



.128 



83.2 



89.0 



79.8 



9.2 



8 



.572 



.634 



.482 



.152 



85.1 



93.0 



80.0 



13.0 



9 



.520 



.575 



.433 



.142 



85.8 



93.2 



80.6 



12.6 



10 



.494 



.547 



.436 



.111 



86.2 



91.6 



83.2 



8.4 



11 



.606 



.558 



.441 



.117 



85.1 



90.5 



81.0 



9.5 



12 



.555 



Ah 6 



.506 



.110 



84.5 



90.0 



81.0 



9.0 



13 



.646 



.697 



.593 



.101 



84.6 



89.8 



81.2 



8.6 



14 



.660 



.714 



.602 



.112 



85.0 



90.4 



80.2 



10.2 



15 



.575 



.651 



.489 



.162 



83.4 



86.0 



81.2 



4.8 



16 



.521 



.560 



.469 



.091 



84.2 



86.7 



82.0 



4.7 



17 



.555 



.59/ 



.522 



.075 



83.2 



91.0 



78.6 



12.4 



18 



.563 



.600 



.516 



.084 



82.9 



86.2 



80.4 



5.8 



19 



.580 



.631 



.509 



.122 



83.3 



88.6 



79.0 



9.6 



20 



.604 



.654 



.547 



.107 



82.3 



86.0 



80.2 



5.8 



21 



.6i5 



.662 



.555 



.107 



82.7 



86.8 



79.2 



7.6 



22 



.587 



.634 



.531 



.100 



83.4 



87.0 



79.8 



7.2 



23 



.614 



.664 



.545 



.119 



84.5 



89.4 



80.0 



9,4 



24 



.638 



.681 



.584 



.097 



84.6 



87.8 



81.8 



6.0 



25 



.634 



.670 



.573 



.097 



81.0 



90.4 



81.6 



8.8 



26 



.597 



.645 



.517 



.128 



82.2 



85.0 



81.2 



3.8 



27 



.597 



.639 



.533 



.106 



83.7 



88.6 



79.2 



9.4 



28 



.611 



.668 



.555 



.113 



83.2 



87.5 



80.4 



7.1 



29 



.631 



.691 



.560 



.131 



84.3 



.90.2 



79.8 



10.4 



30 



.629 



.673 



.573 



.100 



84.8 



90.8 



80.3 



10.5 



31 



.631 



.668 



.575 



.093 



83.0 



87.8 



80.6 



7.2 



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. 



