Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's OJJice, Calcutta., 



in the month of May 1869. 



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



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



Daily Means, &c. of tlie Observations and of tke Hygrometrieal elements 

 dependent thereon. 





=-1-1 , 



o t-< 



Iiange of tbe Barometer 





Range of the Tempera- 







during tbe day. 





ture during tbe day. 



















Date. 









1 















el H 













Mas. 



Min. 



Diff. 





Mas. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 



o 







o 



o 



1 



29.796 



29.859 



29.733 



0.126 



85.9 



92.0 



81.0 



11.0 



2 



.836 



.918 



.772 



.146 



87.6 



97.0 



80.0 



17.0 



3 



.825 



.911 



.721 



.190 



86.4 



95.1 



75.5 



19.6 



4 



.736 



.805 



.663 



.142 



84.6 



92.7 



76.3 



16.4 



5 



.755 



.810 



.677 



.133 



85.8 



94.5 



76.9 



17.6 



6 



.777 



.847 



.723 



.124 



87.5 



95.0 



76.6 



18.4 



7 



.779 



.890 



.708 



.182 



86.3 



95.5 



77.2 



18.3 



8 



, .729 



.798 



.641 



.157 



88.7 



98.0 



82.0 



16.0 



9 



.674 



.726 



.611 



.115 



88.7 



96.0 



83.0 



13.0 



10 



.665 



.723 



.616 



.107 



88.8 



96.0 



83.0 



13.0 



11 



.671 



.720 



.619 



.101 



89.8 



98.7 



84.0 



14.7 



12 



.668 



.729 



.586 



.143 



89.7 



100.0 



83.5 



16.5 



13 



.685 



.765 



.617 



.148 



89.6 



99.0 



82.0 



17.0 



14 



.737 



.808 



.645 



.163 



89.4 



97.4 



82.3 



15.1 



15 



.678 



.779 



.572 



.207 



89.3 



97.3 



82.5 



14.8 



16 



.486 



.614 



.317 



.297 



80.1 



86.8 



75.9 



10.9 



17 



.603 



.666 



.465 



.201 



82.6 



93.5 



77.5 



16.0 



18 



.599 



.659 



.534 



.125 



85.8 



91.7 



77.7 



14.0 



19 



.536 



.590 



.458 



.132 



87.5 



92.2 



84.5 



7.7 



20 



.591 



.643 



.548 



.095 



88.0 



93.6 



84.5 



9.1 



21 



.595 



.708 



.492 



.216 



86.8 



94.0 



76.4 



17.6 



22 



.594 



.674 



.511 



.163 



81.4 



89.2 



75.5 



13.7 



23 



.594 



.662 



.522 



.140 



86.0 



93.0 



79.0 



14.0 



24 



.627 



.690 



.519 



.171 



85.6 



93.0 



79.0 



14.0 



25 



.625 



.694 



.563 



.131 



86.3 



94.0 



79-0 



15.0 



26 



.629 



.725 



.535 



.190 



87.1 



94.3 



80.6 



13.7 



27 



.659 



.714 



.596 



.118 



87.6 



94.0 



80.6 



13.4 



28 



.634 



.689 



.555 



.134 



88.5 



95.0 



83.5 



11.5 



29 



.555 



.637 



.453 



.184 



87-7 



96.1 



77.5 



18.6 



30 



.552 



.623 



.475 



.148 



88.4 



96.0 



82.8 



13.2 



31 



.626 



.715 



.572' 



.143 



88.5 



95.0 



84.0 



11.0 



Tbe Mean Height of tbe Barometer, as likewise tbe Dry and Wet Bulb 

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

 tbe day. 



