Meteorological Observations. 



lvii 



Abstract of the 'Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Oj)ire, Calcutta, 



in the month of August 1867. 



Latitude 22° 33' 1" North. Longitude 88° 20' 31" 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 thei*eou. 





o t* 



Range of the Barometer 



a u 



Bange of the Tempera- 





3 S -8 



dui 



■ing the day. 





ture dui 



ing the day. 



Date. 

















« W 22 









a 5? 











c3 J; "I 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





0} p— 5 "+T 









^ H 











Inches. 



Inches. 



Inches. 



Inches. 







o 











1 



29.581 



29.628 



29.523 



0.105 



83.0 



89.5 



80.0 



9.5 



2 



.618 



.667 



.576 



.091 



83.6 



88.5 



80.2 



8.3 



3 



.633 



.676 



.571 



.105 



82.7 



87.0 



80.0 



7.0 



4 



.639 



.691 



.586 



.105 



82.8 



86.8 



80.0 



6.8 



5 



.634 



.691 



.558 



.133 



83.3 



89.7 



80.4 



9.3 



6 



.591 



.639 



.537 



.102 



83.3 



88.6 



79.5 



9.1 



' 7 



.574 



.622 



.510 



.112 



84.7 



89.0 



81.0 



8.0 



8 



.576 



' .622 



.518 



.104 



82.5 



86.5 



80.0 



6.5 



9 



.625 



.687 



.574 



.113 



82.5 



89.4 



78.0 



11.4 



10 



.630 



.691 



.559 



.132 



83.6 



89.5 



80.0 



9.5 



11 



.557 



.599 



.459 



.140 



84.0 



88.0 



81.0 



7.0 



12 



.527 



.582 



.432 



.150 



83.7 



88.8 



80.5 



8.3 



13 



.577 



.635 



.529 



.106 



81.9 



83.0 



79.2 



8.8 



14 



.540 



.616 



.473 



.143 



79.0 



80.8 



77.5 



3.3 



15 



.500 



.538 



.443 



.095 



78.2 



80.0 



76.5 



3.5 



16 



.572 



.656 



.509 



.147 



79.0 



82.2 



76.3 



5.9 



17 



.663 



.714 



.616 



.098 



81.9 



85.5 



78.5 



7.0 



18 



.675 



.732 



.613 



.119 



83.6 



87.1 



81.7 



5.4 



19 



.608 



.656 



.517 



.139 



82.5 



87.2 



79.8 



7.4 



20 



.559 



.611 



.495 



.116 



80.5 



82.5 



77.9 



4.6 



21 



.570 



.634 



.511 



.123 



81.8 



86.6 



78.4 



8.2 



22 



.636 



.691 



.589 



.102 



82.5 



86.0 



80.5 



5.5 



23 



.653 



.704 



.595 



.109 



84.4 



89.3 



81.4 



7.9 



24 



.661 



.733 



.604 



.129 



81.7 



83.6 



77.0 



6.Q 



25 



.622 



.668 



.553 



•115 



81.6 



86.5 



78.0 



8.5 



26 



.640 



.696 



.583 



.113 



83.4 



87.5 



79.8 



7.7 



27 



.658 



.700 



.600 



.100 



84.9 



90.0 



81.0 



9.0 



28 



.672 



.726 



.609 



.117 



84.9 



90.5 



81.0 



9.5 



29 



.656 



.718 



.562 



.156 



' 85.0 



90.0 



81.5 



8.5 



30 



.592 



.653 



.509 



.144 



85.8 



91.6 



82.0 



9.6 



31 



.565 



.628 



.487 



.141 



85.8 



91.4 



82.0 



9.4 



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. 



