Meteorological Observations. XXKV 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of May, 1865. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 















Me . 
‘S $5 | Range of the Barometer = 3 Range of the Temperature 
aga for each hour during mg for each hour during 
H oe the month. bo the month. 
eee —| 4: 
ao? ‘ £ 2 . é 
$34 | Max. Min. Diff. | §& | Max. Min. Diff. 
= = 
Inches. | Inches.; Inclies.. Inches. o on} o ° 
Mid- {99.661 ! 29.827 {29.465 | 0.362 | 80.6 85.0, 768 8.2 
night, * Fn . , . A . . . . 
1 651 811 458 353 80.2 85.0 75.4 9.6 
2 .635 804 447 307 79.8 85.0 73.0 12.0 
3 642 -806 463 843 796 84.8 73.6 11.2 
4 .630 -808 445 .363 79.7 83.8 73.2 10.6 
5 651 +824 449 375 79.5 84.0 73.6 10.4 
6 .667 -826 468 358 79.7, 83.8 73.6 10.2 
7 .681 -832 ATT 13855 80.7 84.6 73.0 11.6 
8 .693 842 A75 .367 82.7 87.0 74,2 12.8 
9 -705 -854 492 .862 84.7 88.8 74.3 14.5 
10 -702 .851 497 854 86.2 90.3 76.0 14.3 
it .692 843 A82 361 87.5 92.0 77.9 14,1 
Noon 671 .827 473 854 88.6 92.6 80.8 11.8 
1 .650 .806 445 361 88.7 93.6 77.3 16.3 
2 .625 (784 427 1357 88.8 94.3 77.5 16.8 
3 .605 773 418 355 88.5 94.8 76.4 18.4 
4 .587 .750 415 335 878 94.8 77.3 17.5 
5 592 .759 423 336 86.5 94.4 78.0 16.4 
6 .601 .753 429 324 84.6 90.2 77.8 12.4 
7 .626 ACH 446 .325 82.7 87.9 75.6 12.3 
8 645 773 { 454 .319 81.6 87.7 75.6 12.1 
9 .661 .786 469 317 81.3 86.7 76.3 10.4 
10 .678 .815 .486 .329 81.1 85.6 75.8 9.8 
at 674 824 A473 ol 80.6 85.0 73.0 12.0 
| | 



$$. 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb Ther- 
mometer Means are derived from the Observations made at the several hours 
during the month. . 

