Meteorological Observations. 



XXXIV 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of May 1870. 



Latitude %t° 33' 1" North. Longitude 88° 20' 34" East. 



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



Daily Means, &c. of tlie Observations and of tlie Hygromefcrieal elements 

 dependent thereon. 







Bange o 



■ the Barometer 



3 ^ Bailee of the Tempera- 





v-3 i -£ 



be p; ^ 



during- the dt 



y- 



«s 



ture during the day. 













fi'S 





Date. 























Pi ft 











£ c '•'* ) 



Max. 



Min. 



Diff. 



3 ii 



Max. 



Min. 



Diff. 





^, ^ cS 









j§H 











Inches. 



Inches. 



Inches. 



Inches. 







o 







o 



1 



29.738 



29.810 



29.650 



0.160 



88.3 



96.5 



82.4 



14.1 



2 



.649 



.714 



.554 



.160 



89.4 



100.8 



82.0 



18.8 



3 



.612 



.684 



.509 



.175 



89.5 



100.5 



82.0 



18.5 



4 



.609 



.678 



.521 



.157 



89.0 



97.4 



83.2 



14.2 



5 



.597 



.671 



.519 



.152 



90.1 



103.4 



82.6 



20.8 



6 



.613 



.672 



.538 



.134 



89.3 



99.0 



82.5 



16.5 



7 



.588 



.664 



.509 



.155 



89.2 



98.2 



83.5 



14.7 



8 



.509 



.586 



.406 



.180 



90.1 



101.0 



82.6 



18.4 



9 



.503 



.584 



.414 



.170 



91.5 



103.6 



83.0 



20.6 



10 



.504 



.572 



.413 



.159 



90.4 



101.0 



82.2 



18.8 



11 



.494 



.547 



.419 



.128 



89.5 



100.6 



81.6 



19.0 



12 



.556 



.613 



.502 



.111 



89.0 



98.5 



82.0 



16.5 



13 



.609 



.667 



.551 



.116 



88.7 



98.5 



81.0 



17.5 



14 



.614 



.686 



.563 



.123 



87.8 



96.7 



81.7 



15.0 



15 



.608 



. .674 



.549 



.125 



87.6 



96.5 



81.2 



15.3 



16 



.619 



.703 



.595 



.108 



88.0 



98.0 



81.2 



16.8 



17 



.676 



.744 



.605 



.139 



89.0 



98.0 



82.5 



15.5 



18 



.650 



.702 



.551 



.151 



88.7 



97.5 



82.5 



15.0 



19 



.632 



.758 



.531 



.227 



86.8 



97.0 



75.0 



22.0 



20 



.598 



.676 



.510 



.166 



81.4 



93.6 



76.5 



17.1 



21 



.575 



.666 



.508 



.158 



86.3 



94.1 



75.7 



18.4 



22 



.633 



.731 



.562 



.169 



85.2 



92.2 



75.5 



16.7 



23 



.686 



.766 



.630 



.136 



85.3 



93.2 



76.6 



16.6 



24 



.675 



.748 



.561 



.187 



86.2 



94.0 



79.0 



15.0 



25 



.682 



.770 



.618 



.152 



87.2 



95.4 



80.5 



14.9 



26 



.668 



.712 



.608 



.104 



84.7 



92.7 



81.0 



11.7 



27 



.634 



.680 



.573 



.107 



84.2 



91.5 



79.5 



12.0 



28 



.595 



.651 



.520 



.131 



85.3 



91.5 



78.7 



15.8 



29 



.528 



.605 



.467 



.138 



84 7 



89.7 



80.5 



9.2 



30 



.467 



.532 



.394 



.108 



84,9 



96.6 



80.0 



16.6 



31 



.474 



518. 



.420 



.128 



87.7 



100.9 



78.0 



22.9 



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

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

 the day. 



