Meteorological Observations. 



iii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of July 1875. 



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



Height of the Cistern of the Standard Barometer above the sea level, 28.11 feet. 



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



dependent thereon. 



Date, 



o *-" 



w 



3 



Range of the Barometer 

 during the day. 



Max. 



Min. 



Diff. 



r& 













pq 



-+j 







^ 



a- 



P 



o 



pt 



fn 







<u 



^ 



3 



H 



Bange of the Tempera- 

 ture during the day. 



Max. 



Min. 



Diff. 



1 

 2 



3 



4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 



Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



29.455 



29.498 



29.399 



0.099 



81.8 



85.7 



79.5 



.461 



.507 



.406 



.101 



83.7 



91.0 



78.5 



.486 



.526 



.434 



.092 



84.1 



90.0 



80.5 



.502 



.555 



.452 



.103 



81.8 



84.0 



80.5 



.545 



.603 



.491 



.112 



80.3 



85.2 



78.0 



.614 



.691 



.560 



.131 



81.3 



87.0 ' 



78.0 



.694 



.744 



.633 



.111 



82.5 



88.7 



78.8 



.671 



.732 



.582 



.150 



81,2 



91.0 



79.7 



.628 



.670 



.561 



.109 



85.2 



91.6 



80.6 



.642 



.694 



.580 



.114 



84,8 ' 



90.5 



80.3 



.624 



.685 



.561 



.124 



83.2 



86.5 



80.0 



.494 



.589 



.416 



.173 



81.3 



84.2 



80.0 



.422 



.468 



.367 



.101 



81.3 



84,5 



79.4 



.316 



.395 



.210 



.185 



79.2 



80.5 



77.4 



.398 



.520 



.262 



.258 



81.4 



85.5 



77.5 



.506 



.560 



.447 



.113 



84.2 



89.0 



79.5 



.498 



.550- 



.426 



.124 



85.6 



91.0 



80.5 



.471 



.530 



.407 



.123 



86.2 



90.0 



83.5 



.425 



.475 



.370 



.105 



86.7 



92.6 



82.0 



.413 



.460 



.335 



.125 



85.1 



90.4 



81.8 



.439 



.502 



.383 



.119 



83.6 



87.4 



80.5 



.463 



.502 



.389 



.113 



83.7 



89.2 



80.5 



.413 



.456 



.354 



.102 



84.1 



89.8 



81.0 



.396 



.431 



.337 



.094 



85.7 



91.5 



81.8 



.431 



.496 



.387 



.109 



81,5 



90.0 



81.2 



.504 



.577 



.454 



.123 



83.8 



89.3 



81.0 



.586 



.644 



.536 



.108 



80.3 



81.5 



78.0 



.596 



.648 



.534 



.114 



83.3 



86.9 



80.6 



.562 



.615 



.520 



.095 



83.1 



86.5 



81.0 



.552 



.603 



.487 



.116 



82.3 



87.2 



80.0 



•530 



.593 



.480 



.113 



80.6 



82.3 



78.6 



6.2 

 12.5 

 9.5 

 3.5 

 7.2 

 9.0 

 9.9 

 11.3 

 11.0 

 10.2 

 6.5 

 4.2 

 5.1 

 3.1 

 8.0 

 9.5 

 10.5 

 6.5 

 10.6 

 8.6 

 6.9 

 8.7 

 8.8 

 9.7 

 8.8 

 8.3 

 3.5 

 6.3 

 5.5 

 7.2 

 3.7 



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

 Thermometer Means aro derived, from the hourly observations, made at the 

 several hours during the day. 



