Meteorological Observations. 



xxv 



Abstract of tlie Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of August, 18G0. 



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. 





=4- i. 



















j_> CD -1J 



Range 



if the Barometer 



"3 £ 



Range of the Tempera- 





» o H 



during the day. 



CO <o 



s 



ture during the day. 





£ 5 



CO 































«J 



C <u 



Max. 



Min, 



Diff. 





Max. 



Min. 



Diff. 



Q 



1" 









r5 











Inches. 



Inches. 



Inches. 



Inches. 











o 



o 



1 



29.536 



29.571 



29.479 



0.092 



82.6 



87.0 



79.6 



7.4 



2 



.454 



.546 



.365 



.181 



83.5 



88.2 



80.8 



7.4 



3 



.403 



.455 



.363 



.092 



81.6 



85.4 



79.2 



6.2 



4 



.471 



.519 



.409 



.140 



82.4 



85.8 



79.2 



6.6 



5 



Sunday. 

















6 



.539 



.583 



.483 



.100 



84.1 



88.4 



81.0 



7.4 



7 



.594 



.644 



.548 



.096 



82.1 



85.7 



79.8 



5.9 



8 



.621 



.661 



.573 



.088 



81.6 



84 8 



79.0 



5.8 



9 



.627 



.681 



.541 



.140 



85.3 



92.0 



79.4 



12.6 



20 



.603 



.678 



.524 



.154 



87.2 



92.8 



82.6 



10.2 



11 



.515 



.564 



.424 



.140 



88.5 



95.6 



84.2 



11.4 



12 



Sunday. 

















13 



.514 



.573 



.470 



.103 



83.5 



87.4 



80.6 



6.8 



14 



.565 



.613 



.511 



.102 



83.5 



88.0 



80.6 



7.4 



15 



.587 



.645 



.520 



.119 



83.9 



87.6 



80.6 



7.0 



16 



.558 



.600 



.486 



.114 



84.1 



88.8 



81.2 



7.6 



17 



.575 



.630 



.530 



.100 



81.5 



82.7 



79.8 



2.9 



18 



.664 



.722 



.607 



.115 



80.7 



83.5 



78.8 



4.7 



19 



Sunday. 

















20 



.701 



.748 



.653 



.095 



82.7 



86.8 



79.4 



7.4 



21 



.652 



.710 



.583 



.127 



80.8 



82.6 



7S.7 



3.9 



22 



.635 



.678 



.591 



.087 



82.4 



86.2 



79.2 



7.0 



23 



.663 



.696 



.605 



.091 



82.3 



88 6 



79.2 



9.4 



24 



.675 



.745 



.617 



.128 



83.2 



88.4 



79.6 



8.8 



25 



.719 



.777 



.667 



.110 



82.5 



85.1 



80.0 



5.1 



26 



Sunday. 

















27 



.751 



.826 



.702 



.124 



82.6 



86.0 



79.0 



7.0 



28 



.722 



.784 



.640 



.144 



85.5 



92.6 



81.0 



11.6 



29 



.669 



.734 



.585 



.149 



86.4 



93.0 



82.2 



10.8 



30 



.652 



.708 



.580 



.128 



86.6 



91.8 



82.8 



9.0 



31 



.683 



.748 



.615 



.133 



86.3 



91.5 



82.6 



8.9 



The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb 

 Thermometers are derired from the twenty-four hourly observations made during 

 |.he day. 



