Meteorological Observations. XXvii 
‘Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor Generals Office, Calcutta, 
an the month of April 1866. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
‘63 Range of the Barometer = .. | Range of the Tempera- 
awe for each hour during ae ture for each hour 
rs 45 5 FQ 
: abe ai the month. os during the month. 
aS a5 
Hour.| 5 = Ad 
aan 5 ; 45 : ae 
Saeco | Max?) Min. | Diff. @= | Max. | Min. | Diff. 
= a en EY 
= 4 = 
Inches. | Inches. | Inches. | Inches. 
[o} 
° 
[o} 
° 
Mid- 
might. 29.783 | 30.042 | 29.623 | 0.419 79.5 83.4 68.8 | 14.6 
a 7T71 | 29.963 .608 .300 79.0 83.0 68.4 | 14.6 
2 761 982 093 389 78.8 82.6 68.8 | 13.8 
3 fo2 .959 D380 379 78.5 82.2, 68.4 | 13.8 
A, 755 960 O87 373 78.2 82.0 69.0 | 13.0 
5 770 982 .600 L382, 78.0 82.2 69.0 | 13.2 
6 790 | 30.005 .620 .38) 77.8 82.2 68.6 | 13.6 
ai LL 038 640 398 78.8 83.4 70.4 | 13.0 
ra) £833 .068 ~665 A403 81.2 85.8 WOH |) WSoll: 
9 849 O74 684 390 84.3 88.8 73.38 | 15.5 
10 ol 070 68d O80 86.9 92.2, 75.0 | 17.2 
11 AL O14 .683 ool 89.1 95.6 76.3 | 19.3 
Noon. 822 B07 662, 345 96.6 98.9 WG-6), 23 
vl JAS PSA 627 344 91.9 100.2 78.0 | 22.2 
2 157 947 08d 362 92.7 101.8 82.0 | 19.8 
3 29 US) .5609 .303 93.0 102.3 82.8 | 19.5 
4A 709 .899 Hdd 344 92.4 102.6 81.0 | 21.6 
5 705 Gd 540 .300 90.6 100.8 79.0 | 21.8 
6 AQT souly 07 .360 87.7 96.4 Media VOED 
‘i TAL 948 O77 Bil 84.7 91.6 72.8 | 18.8 
8 768 .963 G05 .308 82.6 89.8 73.6 | 16.2 
9 183 989 632 207 81.6 87.0 73.4 | 13.6 
10 796 | 30.016 | 641 375 80.6 85.0 72.2 | 12.8 
1 795 -062 .639 A23 80.0 84.4 73.3 | Lil 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
r ¥ r) , . 
Thermometcr Means are derived from the observatious made at the several 
hours during the month. 
