Meteorological Observations. 



Ix 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of August 1869. 



Hourly Means, &c. of the Observations and of the Hygrometrical elements 



dependent thereon. 



Hour 



Mean Height of 



the Barometer at 



32° Faht. 



.Range of the Barometer 



for each hour during 



the month. 



J? ° 



Max. 



Min. 



Diff. 



Range of the Tempera- 

 ture for each hour 

 during the month. 



Max. 



Min. ! Diff. 



Mid- 

 night. 



1 



2 



3 



4 



7 



8 



9 



10 



11 



Noon. 

 1 

 2 



3 



4 



5 



6 



7 



8 



9 



10 

 11 



Inches. 



Inches. 



Inches. 



Inches. 







o 







29.664 



29.776 



29.516 



0.260 



82.8 



85.0 



79.4 



.653 



.768 



.493 



.275 



82.5 



84,6 



79.8 



.644 



.760 



.472 



.288 



82.3 



84.3 



79.8 



.636 



.751 



.450 



.301 



82.0 



84.0 



79.6 



.630 



.764 



.446 



.318 



81.8 



83.8 



79.5 



.639 



.776 



.477 



.299 



81.6 



83.8 



78.7 



.654 



.794 



.492 



.302 



81.5 



83.6 



77.3 



.671 



.809 



.515 



.294 



82.2 



84,5 



78.0 



.686 



.823 



.531 



.292 



83.6 



85.6 



78.3 



.696 



.832 



.543 



.289 



85.2 



87.2 



81.0 



.697 



.836 



.550 



.286 



86.2 



89.5 



80.5 



.690 



.831 



.551 



.280 



87.0 



90.0 



80.5 



.674 



.812 



.526 



.286 



87.5 



91.5 



81.5 



.649 



.792 



.494 



.298 



87.9 



92.3 



81.0 



.624 



.767 



.476 



.291 



88.1 



93.0 



80.5 



.603 



.752 



.449 



.303 



87.8 



93.4 



82.0 



.590 



.734 



.437 



.297 



87.4 



93.2 



83.0 



.587 



.719 



.420 



.299 



86.7 



90.5 



82.0 



.597 



.731 



.429 



.302 



85.7 



89.6 



80.3 



.616 



.737 



.465 



.272 



84.6 



87.5 



80.0 



.642 



.758 



.494 



!264 



83.9 



86.0 



79.5 



.664 



.773 



.515 



.258 



83.5 



86.0 



79.5 



.676 



.786 



.521 



.265 



83.3 



85.5 



80.0 



.676 



.783 



.522 



.261 



83.1 



85.3 



79.7 



5.6 

 48 

 4.5 

 4.4 

 4.3 

 5.1 

 6.3 

 6.5 

 7.3 

 6.2 

 9.0 

 9.5 



10.0 



11.3 



12.5 



11.4 



10.2 



8.5 



9.3 



7.5 



6.5 



6.5 



5.5 



5.6 



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

 Thermometer Means are derived from the observations made at the several 

 hours during the month. 



