Meteorological Observations. 



Abstract of the .Results of the Hourly Meteorological Observations 

 taken at the Surveyor OeneraVs Office, Calcutta, 



in the month of May, 1864. % 



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



Feet. 

 Height of the Cistern of the Standard Barometer above the Sea-level, 18.11 



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

 dependent thereon. 





o S 



Range of the Bar 

 during the d* 



ometer 



hi 



Range of the Tempera- 

 ture during the day. 





03 % 















Date. 















1 5 a 



Max. 



Min. 



Diff. 



%J3 



Max. 



Min. 



Diff. 





1" 









! 











Inches. 



Inches. 



Inches. 



Inches. 











o 







1 



Sunday. 

















2 



29.691 



29.790 



29.593 



0.197 



84.2 



95.0 



74.6 



20.4 



3 



.705 



.762 



.635 



.127 



86.1 



94.4 



80 6 



13.8 



4 



.719 



.788 



.657 



.131 



86 6 



95.3 



80.6 



14.7 



5 



.697 



.762 



.624 



.138 



86.9 



97.0 



80 4 



16.6 



6 



.669 



.719 



.580 



.139 



86.8 



98.0 



77.6 



20.4 



7 



.677 



.734 



.619 



.115 



87.0 



98.8 



77.8 



21.0 



8 



Sunday . 

















9 



.776 



.852 



.709 



.143 



88.1 



99.8 



79.2 



20.6 



10 



.812 



.887 



.767 



.120 



83.3 



94.6 



79.0 



15.6 



11 



.838 



.902 



.756 



.146 



82.1 



91.7 



75.2 



16.5 



12 



.846 



.923 



.771 



.152 



83.7 



93.0 



75.0 



18.0 



13 



.827 



.892 



.765 



.127 



86.7 



98.4 



79.2 



19.2 



14 • 



.798 



.876 



.704 



.172 



87.1 



99.6 



78.4 



21.2 



15 



Sunday. 

















16 



.787 



.881 



.706 



.175 



82.9 



94.0 



73.8 



20.2 



17 



.805 



.883 



.712 



.171 



82.8 



93.6 



73.0 



20.6 



18 



.871 



.947 



.807 



.140 



79.9 



92.0 



74.0 



18.0 



19 



.813 



.892 



.746 



.146 



81.6 



93.6 



74.2 



1.9.4 



20 



.769 



.851 



.658 



.193 



83.8 



94.0 



74,7 



19.3 



21 



.706 



.763 



.616 



.147 



87.0 



98.2 



79.0 



19.2 



22 



Sunday. 

















23 



.663 



.739 



,580 



.159 



89.2 



101.6 



81.2 



20.4 



24 



.582 



.645 



.500 



.145 



90.6 



104.2 



81.4 



22.8 



25 



.583 



.645 



.533 



.112 



87.8 



96.6 



83.0 



13,6 



26 



.647 



.703 



.602 



.101 



82.2 



95.6 



76.6 



19.0 



27 



.686 



.749 



.614 



.135 



83.8 



92.8 



76.0 



168 



28 



.686 



.748 



.596 



.152 



81.9 



93.0 



73.2 



19.8 



29 



Sunday. 

















30 



.668 



.720 



.614 



.106 



77.2 



83.0 



74.6 



8.4 



31 



.628 



.695 



.565 



.130 



1 79.9 



1 86.4 



' 75.0 | 11.4 



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

 mometer Means are derived, from the hourly Observations made during the day. 



