Meteorological Observations. 



lvii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of August 1866. 



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 of the Baronu 1 r 





Range < 



:>f T^nvnera- 





M 2~ 



• r-i K C3 



dm 



ing the day. 



pq -Js 



Si 



tnre during the day. 



Date. 

















n W ™ 









a b 











5 (U 00 



2 J=! += 



Max. 



Min. 



Diflf. 



a s 



- 1 — i 



Max. 



Min. 



Diff. 













%$ 











Inches. 



Inches. 



Inches. 



Inches. 















o 



1 



29.586 



29.625 



29.520 



0.105 



13 2 



89.6 



80.4 



9.2 



2 



.614 



.695 



.544 



.151 



80.7 



83.2 



78.2 



5.0 



3 



.730 



.809 



.683 



.126 



80.4 



83.6 



79.2 



4.4 



4 



.739 



.777 



.677 



.100 



80.0 



82.7 



79.0 



3.7 



5 



.680 



•742 



.616 



.126 



81.5 



84.8 



79.4 



5.4 



6 



.540 



.655 



.442 



.213 



82.2 



86.0 



79.8 



6.2 



7 



.390 



.449 



.332 



.117 



81.2 



85.4 



79.2 



6.2 



8 



.414 



.499 



.369 



.130 



80.9 



85.2 



78.2 



7.0 



9 



.544 



.630 



.475 



.155 



83.6 



89.7 



78.8 



10.9 



10 



.593 



.631 



.524 



.107 



84.3 



90.8 



80.7 



10.1 



11 



.557 



.613 



.474 



.139 



84.6 



89.2 



81.8 



7.4 



12 



.501 



.551 



.426 



.125 



83.6 



89.4 



80.4 



9.0 



13 



.542 



.595 



.489 



.106 



83.0 



87.6 



79.8 



7.8 



14 



.597 



.639 



.541 



.098 



83.3 



87.4 



80.0 



7.4 



15 



.617 



.651 



.560 



.091 



83.4 



89.6 



80.2 



9.4 



16 



.589 



.681 



.531 



.100 



82.4 



86.0 



78.8 



7.2 



17 



.563 



.623 



.484 



.139 



83.5 



87.8 



80.2 



7.6 



18 



.525 



.572 



.452 



.120 



82.6 



86.7 



80.5 



6.2 



19 



.505 



.547 



.442 



.105 



83.8 



88.3 



80.2 



8.1 



20 



.509 



.561 



.465 



.096 



83.2 



85.6 



81.5 



4.1 



21 



.548 



.607 



.495 



.112 



82.0 



85.2 



79.6 



5.6 



22 



.578 



.634 



.515 



.119 



83.7 



89.4 



79.4 



10.0 



23 



.562 



.615 



.475 



.140 



84.6 



90.4 



80.4 



10.0 



24 



.558 



.613 



.485 



.128 



85.0 



90.8 



81.4 



9.4 



25 



.585 



.645 



.515 



.130 



84.3 



89.8 



81.8 



8.0 



26 



.606 



.657 



.547 



.110 



83.6 



88.4 



80.6 



7.8 



27 



.607 



.649 



.550 



.099 



82.3 



88.4 



80.3 



8.1 



28 



.582 



.636 



.511 



.125 



82.0 



86.0 



77.4 



8.6 



29 



.670 



.739 



.615 



.124 



81.9 



85.8 



78.6 



7.2 



30 



.754 



.822 



.691 



.131 



84.1 



90.0 



79.0 



11.0 



31 



.723 



.787 



.639 



.148 



86.2 



91.8 



81.4 



10.4 



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. 



