Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of July 1869. 



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



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



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

 dependent thereon. 





o *■< 



Range < 



}f the Barometer 



""3 ** 



Range of the Tempera- 







during the day. 



P 2 



ture during the 



day. 



Date. 



















Max. 



Min. 



Diff. 



=3 <u 



Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 



















1 



29.556 



29.610 



29.499 



0.111 



85.0 



89.5 



81.2 



8.3 



2 



.541 



.595 



.469 



.126 



86.5 



92.0 



81.4 



10.6 



3 



.502 



.549 



.448 



.101 



84.7 



90.5 



80.8 



9.7 



4 



.448 



.492 



.383 



.109 



85.0 



89.8 



81.0 



8.8 



5 



.421 



.470 



.370 



.100 



84.6 



89.1 



82.0 



7.1 



6 



.452 



.493 



.409 



.084 



83.8 



89.2 



81.5 



7.7 



7 



.461 



.527 



.399 



.128 



82.4 



87.5 



78.4 



9.1 



8 



.563 



.648 



.490 



.158 



82.1 



86.0 



79.5 



6.5 



9 



.676 



.744 



.618 



.126 



84.1 



89.0 



80.3 



8.7 



10 



.646 



.710 



.565 



.145 



85.0 



90.0 



81.5 



8.5 



11 



.563 



.617 



.487 



.130 



85.1 



89.6 



81.7 



7.9 



12 



.554 



.603 



.510 



.093 



84.7 



89.2 



81.0 



8.2 



13 



.573 



.610 



.522 



.088 



82.7 



86.5 



80.2 



6.3 



14 



.574 



.604 



.525 



.079 



81.7 



88.0 



79.5 



6.5 



15 



.498 



.564 



.416 



.148 



83.4 



87.5 



78.5 



9.0 



16 



.456 



.502 



.387 



.115 



82.4 



85.4 



79.5 



5.9 



17 



.468 



.509 



.408 



.101 



83.2 



87.8 



80.5 



7.3 



18 



.431 



.481 



.358 



.123 



83.2 



88.0 



81.0 



7.0 



19 



.485 



.564 



.429 



.135 



82.9 



86.7 



80.0 



6.7 



20 



.536 



.595 



.475 



.120 



80.9 



84.7 



79.0 



5.7 



21 



.555 



.600 



.491 



.109 



79.9 



83.5 



77.5 



6.0 



22 



.567 



.613 



.509 



.104 



83.5 



87.7 



80.0 



7.7 



23 



.561 



.604 



.495 



.109 



82.9 



88.0 



80.0 



8.0 



24 



.549 



.599 



.473 



.126 



82.6 



87.4 



79.8 



7.6 



25 



.561 



.628 



.506 



.122 



83.3 



88.0 



80-0 



8.0 



26 



.626 



.672 



.574 



.098 



84.6 



89.8 



79.5 



10.3 



27 « 



.610 



.657 



.548 



.109 



86.3 



91.6 



82.0 



9.6 



28 



.607 



.655 



.530 



.125 



87.2 



92.7 



83.0 



9.7 



29 



.632 



.672 



.578 



.094 



87.0 



92.6 



82.7 



9.9 



30 



.647 



.700 



.585 



.115 



85.8 



88.7 



83.0 



5.7 



31 



.654 



.685 



.603 



.082 



84.0 



87.6 



82.4 



5.2 



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. 



