Meteorological Observations. 



xlii 



Abstract of the Results of the Hourly Meteorological Observations- 

 taken at the Surveyor General's Office, Calcutta, 

 in the month of June 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, &e. of the Observations and of the Hygrometrical elements 

 dependent thereon. 





° S3 



llange of the Barometer 



^ S3 



Bange of the Tempera- 





S"|+j 



dm 



ing the day. 



m| 



ture during the clay. 



















Date. 



















Max. 



Min. 



Dili. 



M 



Max. 



Min. 



Diff. 





^ C 









£ H 











Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



1 



29.663 



29.729 



29.601 



0.128 



88.7 



95.8 



83.8 



12.0 



2 



.655 



.717 



.579 



.138 



88.6 



94.5 



82.6 



11.9 



3 



.583 



.635 



.498 



.137 



88.5 



96.0 



83.0 



13.0 



4 



.559 



.618 



.498 



.120 



89.1 



96.5 



82.6 



13.9 



5 



.565 



.627 



.491 



.136 



89.8 



98.0 



83.4 



14.6 



6 



.512 



.575 



.416 



.159 



89.7 



97.0 



83.5 



13.5 



7 



.436 



.504 



.374 



.130 



85.4 



87.4 



82.0 



5.4 



8 



.334 



.437 



.220 



.217 



86.8 



95.2 



83.0 



12.2 



9 



.022 



.287 



28.713 



.574 



79.5 



84.0 



77.5 



6.5 



10 



.395 



.496 



29.272 



.224 



83.1 



86.0 



79.5 



6.5 



11 



.531 



.598 



.466 



.132 



87.9 



93.5 



84.0 



9.5 



12 



.557 



.596 



.498 



.098 



89.3 



95.7 



85.0 



10.7 



13 



.567 



.616 



.527 



.089 



89.8 



97.0 



85.7 



11.3 



14 



.615 



.677 



.568 



.109 



89.1 



94.8 



83.6 



11.2 



15 



.656 



.722 



.596 



.126 



88.6 



94.9 



84.0 



10.9 



16 



.676 



.724 



.626 



.098 



85.7 



89.7 



82.5 



7.2 



17 



.658 



.714 



.591 



.123 



86.5 



92.2 



81.5 



10.7 



18 



.661 



.708 



.593 



.115 



87.1 



92.5 



82.5 



10.0 



19 



.640 



.699 



.577 



.122 



86.3 



91.7 



82.0 



9.7 



20 



.604 



.657 



.530 



.127 



87.4 



93.2 



83.0 



10.2 



21 



.570 



.619 



.490 



.129 



87.6 



94.0 



82.5 



11.5 



22 



.533 



.571 



.469 



.102 



88.0 



94.0 



83.0 



11.0 



23 



.462 



.519 



.384 



.135 



86.4 



92.5 



83.4 



9.1 



24 



.367 



.432 



.305 



.127 



83.8 



89.3 



82.4 



6.9 



25 



.379 



.428 



.339 



.089 



81.9 



85.5 



80' 5 



5.0 



26 



.415 



.456 



.373 



.083 



82.8 



87.0 



79.5 



7.5 



27 



.456 



.494 



.409 



.085 



83.2 



88.0 



79.5 



8.5 



28 



.435 



.486 



.362 



.124 



80.4 



83.5 



77.5 



6.0 



29 



.437 



.515 



.389 



.126 



85.0 



89.4 



83.2 



6.2 



30 



.523 



.574 



.471 



.103 



84.0 



87.5 



81.0 



6.5 



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

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

 the da)*. 



