Meteorological Observations. 



xlix 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor GeneraVs Office^ Calcutta^ 



in the month of July, 1864. 



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. 





O a> 









X> y* 





^ S -p 



Range 



of the Barometer 



3 » 





^ S -5 



during the d 



Ay. 



bo 





fflp3& 









q a 



Date. 











a cu ^ 



as ^3 •+>» 



(U-P « 



Max. 



Min. 



Diff. 







S 









H 





Inches. 



Indies. 



Inches. 



Inches. 







1 



29.491 



29.529 



29.449 



0.080 



81.7 



2 



.499 



.551 



.455 



.096 



82.5 



3 



Sunday. 











4 



.550 



.605 



.497 



.108 



82.4 



5 



.510 



.566 



.453 



.113 



80.0 



6 



.505 



.544 



.458 



.086 



81.6 



7 



.570 



.629 



.537 



.092 



82.5 



8 



.588 



.633 



.533 



.100 



84.1 



9 



.579 



.638 



.515 



.123 



84.2 



10 



Sunday. 











11 



.596 



.661 



.523 



.138 



82.9 



12 



.518 



.575 



.436 



.139 



85.0 



13 



.470 



.516 



.406 



.110 



83.6 



14 



.433 



.474 



.377 



.097 



84.2 



15 



.423 



.485 



.352 



.133 



84.3 



16 



.413 



.463 



.336 



.127 



84.2 



17 



Sunday. 











18 



.397 



.441 



.346 



.095 



83.4 



19 



.439 



.525 



.397 



.128 



84.7 



20 



.412 



.476 



.328 



.148 



82.8 



21 



.362 



.421 



.313 



.108 



82.0 



22 



.480 



.543 



.394 



.149 



80.9 



23 



.522 



.568 



.468 



.100 



84.6 



24 



Sunday. 











25 



.519 



.564 



.467 



.097 



86.2 



26 



.520 



.563 



.475 



.088 



85.4 



27 



.531 



.582 



.489 



.093 



82.9 



28 



.573 



.625 



.521 



.104 



83.7 



29 



.610 



.669 



.559 



.110 



84.8 



30 



.615 



.659 



.563 



.096 



83.3 



31 



Sunday. 











Range of the Tempera- 

 ture during the day. 



Max. 



86.7 

 86.8 



85.2 

 83.0 

 86.0 

 85.8 

 89.4 



87.8 

 89.6 

 90.2 

 89.2 

 88.8 

 89.4 



87.4 

 91.2 

 86.0 

 85.4 

 83.7 



89.6 

 90.4 

 86.4 

 86.4 

 89.4 

 85.2 



Min. 



78.6 



77.0 



81.0 



76.8 

 77.8 

 79.2 

 80.0 

 79.4 



80.6 

 81.2 

 77.2 

 82.3 

 81.6 

 81.6 



80.8 

 80.6 

 81.0 

 80.0 

 79.4 

 80.6 



82.6 

 81.0 

 80.4 

 81.2 



82.6 



79.2 



Diff. 



8.1 

 9.8 



4.2 

 6.2 

 8.2 

 6.6 

 9.4 

 10.4 



7.2 



8.4 



13.0 



6.9 



7.2 

 7.8 



6.6 

 10.6 



5.0 

 5.4 

 4.3 

 8.2 



7.0 

 9.4 

 6.0 

 5.2 

 6.8 

 6.0 





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

 mometer Means are derived, from the hourly Observations made 5 during the day. 



