Meteorological Observations. 



xxxui 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of May, 1857. 



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. 





t of 

 eter 



it. 



Range 



of the Barometer 



3 J 

 W 2 



Range of the Tempera- 





%>o£ 



during the d 



ly. 



£-1 



ture during the 



day. 





13 * 



CO 









pa 









Date. 

















a v 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





£ 









£ 











Inches. 



Inches. 



Inches. 



Inches. 



o 







o 



o 



1 



29.689 



29.778 



29.627 



0.151 



88.4 



100.0 



79.5 



20.5 



2 



.641 



.726 



.546 



.180 



87.4 



96.7 



79.7 



17.0 



3 



Sunday. 

















4 



.596 



.656 



.532 



.124 



88.3 



99.6 



82.0 



17.6 



5 



.622 



.707 



.544 



.163 



87.4 



96.6 



80.6 



16.0 



6 



.584 



.646 



.497 



.149 



87.0 



93.2 



81.7 



11.5 



7 



.618 



.680 



.512 



.168 



86.5 



93.6 



69.0 



24.6 



8 



.570 



.627 



.492 



.135 



83.0 



93.6 



73.0 



20.6 



9 



.530 



.593 



.485 



.108 



80.7 



91.6 



73.6 



18.0 



10 



Sunday. 

















11 



.667 



.731 



.597 



.134 



81.7 



90.2 



74.5 



15.7 



12 



.650 



.704 



.547 



.157 



86.3 



94.6 



81.6 



13.0 



13 



.694 



.756 



.611 



.145 



86.3 



94.1 



80.1 



14.0 



14 



.722 



.787 



.658 



.129 



85.3 



93.0 



78.2 



14.8 



15 



.694 



.758 



.603 



.155 



87.3 



94.4 



81.1 



13.3 



16 



.668 



.733 



.582 



.151 



87.6 



95.6 



82.0 



13.6 



17 



Sunday. 

















18 



.506 



.568 



.413 



.155 



86.8 



96.4 



78.8 



17.6 



19 



.514 



.581 



.423 



.158 



88.5 



97.0 



81.6 



15.4 



20 



.586 



.734 



.502 



.232 



84.9 



92.0 



76.6 



15.4 



21 



.633 



.736 



.551 



.185 



84.4 



94.0 



75.5 



18.5 



22 



.688 



.755 



.610 



.145 



82.1 



90 



75.4 



14.6 



23 



.691 



.758 



.616 



.142 



85.7 



93.8 



80.4 



13.4 



24 



Sunday. 

















25 



.628 



.687 



.548 



.139 



86.1 



93.8 



80.4 



13.4 



26 



.540 



.611 



.432 



.179 



87.0 



94.5 



80.8 



13.7 



27 



.437 



.510 



.345 



.165 



86.8 



95.7 



81.6 



14. i 



28 



.410 



.480 



.337 



.143 



86.3 



97.5 



79.8 



17.7 



29 



.489 



.559 



.432 



.127 



86.9 



94.2 



80.2 



14.0 



30 



.519 



.587 



.450 



.137 



87.1 



94.6 



78.8 



15.8 



31 



Sunday. 

















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

 Thermometers are derived, from the twenty-four hourly observations made, during 

 the day. 



