Meteorological Obsercafioiis 



Ix; 



Abstract of tlie llesulfs of the Hourly Meteorological Observatio?ti 



taken at the Surveyor General^ ^ffi^^i Calcutta , 



in the month of Sej^tember 1874. 



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



dependent tliereou. 





^^ 



JJange 



of the 13;irometer 



7 



l^mge 



of the Tempera. 







for ej 



ch haiir ( 



lurijig 



Ih 



ture 



for each 



lour 





br;0^ 



tlie month 





fi a 



durii 



■ 



ig the month. 



Hour. 

















if^?5 



Max. 



Min. 



DiiF. 



ii 



Max. 



Miji. 



Diff. 













%^ 











Inches. 



Inches. 



Inches. 



Inches. 















o 



Mid- 



















niglit- 



29.724 



29.841 



29.608 • 



0.233 



81.3 



85.1 



78.0 



7.1 



1 



.713 



.834 



.591 



.243 



81.0 



84.7 



78.0 



6.7 



2 



.703 



.810 



.580 



.230 



80.8 



84.4 



77.7 



6.7 



3 



.695 



.795 



.560 



.235 



80.6 1 



84.0 



77.5 



6.5 



4 



.691 



.788 



.562 



.226 



80.3 



83.7 



77.0 



6.7 



6 



.700 



.799 



.573 



.226 



80.1 1 



83.3 



76.6 



6.7 



6 



.713 



.813 



.580 



.233 



• 79.9 



83.0 



76.5 



6.5 



7 



.729 



.867 



.599 



.268 



80.5 



83.3 



76.2 



7.1 



8 



.748 



.861 



.624 



.237 



82.2 



85.4 



75-5 



9.9 



9 



.761 



.869 



.634 



.235 



83.7 



88.3 



77.5 



10.8 



10 



.761 



.864 



.646 



.218 1 



85.0 



89.2 



77.5 



11.7 



11 



.748 



.853 



.628 



.225 



86.0 



90.5 



78.0 



12.5 



Noon. 



.729 



.841 



.607 



.234 



86.6 



91.3 



78.4 



12.9 



1 



.701 



.840 



.576 



.264 



86.8 



91.7 



78.0 



13.7 



2 



.678 



.825 



.544 



.281 



86.4 



92.8 



76.5 



16.3 



3 



.658 



.802 



.517 



.285 



85.7 



93.7 



77.6 



16.1 



4 



.648 



.795 



.517 



.278 



85.0 



93.3 



78.0 



15.3 



5 



.649 



.782 



.530 



.252 



84.1 



92.5 



78.2 



14.3 



6 



.663 



.779 



.551 



.228 



83.2 



89.5 



78.8 



10.7 



7 



.681 



.797 



.576 



.221 



82.5 



87.0 



78.3 



8.7 



8 



.710 



.820 



.599 



.221 



82.2 



86.5 



78.1 



8.4 



9 



.731 



.846 



.624 



.222 



81.9 



86.0 



78.0 



8.0 



10 



.739 



.858 



.618 



.240 



81.7 



85.5 



78.0 



7.5 



11 



.733 



.853 



.618 



.235 



81.4 



85.4 



77.9 



7.5 



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. 



