Meteorological Observations. 



xxxv 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the month of October, 1859. 



Hourly Means, &c. of the Observations and of the Hygrometrical elements 

 dependent thereon. 



Hour. 



Height of 

 Barometer 

 52° Faht. 



Range of the Baro 

 each hour durii 

 month. 



meter for 

 >g the 



PQ 93 



Range of the Tempera- 

 ture for each hour 

 during the 

 month. 





















Max. 



Min. 



Diff. 



c 2 



Max. 



Min. 



Diff. 





U 









s 











Inches. 



Inches. 



Inches. 



Inches. 



O 



o 







o 



Mid- 

 night. 



29.799 



29.988 



29.681 



0.307 



79.0 



81.8 



74,6 



7.2 



1 



.788 



.965 



.667 



.298 



78.7 . 



81.6 



74.0 



7.6 



2 



.779 



.963 



.655 



.308 



78.4 



81.6 



73.8 



7.8 



3 



.774 



.962 



.628 



.334 



78.0 



81.0 



73.2 



7.8 



4 



.771 



.960 



.637 



.323 



77.8 



81.0 



72.3 



8.7 



5 



.782 



.970 



.649 



.321 



77.8 



80.7 



71.8 



8.9 



6 



.802 



.992 



.657 



.335 



77.3 



80.2 



71.8 



8.4 



7 



.823 



30.017 



.687 



.330 



78.0 



81.0 



72.6 



8.4 



8 



.849 



.037 



.703 



.334 



80.7 



84.0 



76.8 



7.2 



9 



.856 



.053 



.722 



.331 



82.2 



85.6 



78.2 



7.4 



10 



.854 



.048 



.716 



.332 



83.4 



■ 86.5 



79.4 



7.1 



11 



.836 



.027 



.693 



.334 



84.6 



87.6 



79.2 



8.4 



Noon. 



.810 



.002 



.664 



.338 



85.6 



88.6 



76.8 



11.8 



1 



.782 



29.98 L 



.633 



.348 



86.3 



88.8 



77.2 



11.6 



2 



.758 



.960 



.611 



.349 



86.3 



89.8 



78.7 



11.1 



3 



.747 



.943 



.607 



.336 



86.3 



89.3 



7S.2 



11.1 



4 



.742 



.932 



.600 



.332 



85.3 



88.3 



78.7 



9.6 



5 



.754 



.933 



.630 



.303 



84.3 



87.4 



78.9 



8.5 



6 



.764 



.949 



•639 



.310 



82.9 



85.4 



78.8 



6.6 



7 



.784 



.976 



.652 



.324 



81.7 



84.2 



78.0 



6.2 



8 



.803 



.995 



.678 



.317 



80.9 



83.6 



76.6 



7.0 



9 



.816 



30.007 



.692, 



.315 



80.2 



82.8 



75.8 



7.0 



10 



.820 



.007 



.692 



.315 



79.7 



82.5 



75.0 



7.5 



11 



.808 



29.995 



.691 



.304 



79.2 



82.0 



73.8 



8.2 



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

 Thermometers are derived from the observations made at the several hours 

 doling the month. 



