Meteorological Observa lions. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of July 1866. 



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

 dependent thereon. 





O =3 



.Range of the Barometer 





Range of the Tempera- 





2&* 



be i. ^d 



for each hour during 



ture for each hour 





the month 







during the month. 



Hour. 









p 1 











C3 PH 00 



Max. 



Min. 



Diff. 



a E 



Max. 



Min. 



Diff. 























Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



Mid- 



















night. 



29.605 



29.674 



29.515 



0.159 



81.2 



84.5 



76.0 



8.5 



1 



.693 



.603 



.491 



.172 



81.0 



83.8 



75.8 



8.0 



2 



.683 



.656 



.466 



.190 



80.7 



83.5 



75.4 



8.1 



3 



.573 



.650 



.456 



.194 



80.4 



83.3 



74.8 



8.5 



4 



.570 



.659 



.476 



.183 



80.2 



83.2 



74.6 



8.6 



5 



.577 



.664 



.480 



.184 



80.4 



83.4 



74.4 



9.0 



6 



.691 



.680 



.493 



.187 



80.6 



83.4 



74.5 



8.9 



7 



.606 



.700 



.504 



.196 



81.2 



84.0 



74.6 



9.4 



8 



.618 



.705 



.516 



.189 



82.5 



85.3 



75.8 



9.5 



9 



.626 



.712 



.530 



.182 



84.1 



87.4 



76.6 



10.8 



10 



.629 



.714 



.535 



.179 



84.9 



88.8 



77.0 



11.8 



11 



.620 



.702 



.529 



.173 



85.7 



90.2 



76.8 



13.4 



Noon. 



.608 



.686 



.509 



.177 



86.1 



91.2 



77.2 



14.0 



1 



.591 



.675 



.491 



.184 



86.5 



92.2 



76.4 



15.8 



2 



.569 



.657 



.460 



.197 



86.3 



93.0 



76.6 



16.4 



3 



.548 



.632 



.433 



.199 



85.9 



93.2 



75.2 



18.0 



4 



.536 



.616 



.439 



.177 



85.6 



91.0 



75.6 



15.4 



5 



.534 



.608 



.443 



.165 



85.3 



89.6 



75.5 



14.1 



6 



.542 



.616 



.456 



.160 



84.5 



88.0 



75.5 



12.5 



7 



.560 



.637 



.480 



.157 



83.3 



86.0 



75.4 



10.6 



8 



.581 



.660 



.505 



.155 



82.7 



85.2 



75.6 



9.6 



9 



.602 



.684 



.527 



.157 



82.3 



84.7 



75.6 



9.1 



10 



.616 



.697 



.540 



.157 



81.8 



85.2 



75.6 



9.6 



11 



.616 



.689 



.542 



.147 



81.4 



85.0 



75.6 



9.4 



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. 



