Meteorological Observations. 



lxxv 



Abstract of the Results of tlw Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of October, 1857. 



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

 dependent thereon. 





<3» . 



Range of the Bar 



ometer 



a S 



Range 



of the Temperature 





2 a-g 



for each hour during 



PQg 



for each hour d 



uring 





■a 2* 



the month. 





h § 





the month. 





Hour. 



33 pq cm 







eg 



























Max. 



Min. 



Diff. 



co E~* 



Max. 



Min. 



Diff. 





1" ■ 









9 











Indies. 



Inches. 



Inches. 



Inches. 



o 



o 











Mid- 

 night. 

 1 



29.874 



29.967 



29.773 



0.194 



79.0 



82.9 



74.9 



8.0 



.865 



.950 



.763 



.187 



78.8 



82.9 



74.4 



8.5 



2 



.855 



.948 



.759 



.189 



78.1 



82.6 



73.9 



8.7 



3 



.851 



.945 



.755 



.190 



77.8 



82.4 



73.5 



8.9 



4 



.857 



.959 



.753 



.206 



77.4 



82.2 



72.9 



9.3 



5 



.867 



.972 



.748 



.224 



77.1 



81.8 



72.3 



9.5 



6 



.883 



.972 



.766 



.206 



76.9 



81.4 



72.2 



9.2 



7 



.906 



.993 



.782 



.211 



77.8 



83.1 



73.1 



10.0 



8 



.928 



30.024 



.801 



.223 



80.6 



86.0 



73.6 



12.4 



9 



.937 



.040 



.800 



.240 



82.3 



87.0 



75.0 



12.0 



10 



.935 



.038 



.795 



.243 



83.7 



88.8 



77.0 



11.8 



11 



.914 



.016 



.778 



• 238 



85.1 



88.7 



77.7 



11.0 



Noon. 



.888 



29.990 



.758 



.232 



86.2 



89.4 



79.2 



10.2 



1 



.858 



.963 



.729 



.234 



86.9 



90.3 



79.1 



11.2 



2 



.834 



.954 



.704 



.250 



87.0 



90.9 



79.5 



11.4 



3 



.816 



.925 



.686 



.239 



87.1 



91.8 



79.3 



12.5 



4 



.817 



.921 



.698 



.223 



86.0 



91.2 



79.2 



12.0 



5 



.816 



.914 



.685 



.229 



84.9 



89.7 



78.0 



11.7 



6 



.823 



.919 



.681 



.238 



83.1 



87.2 



77.4 



9.8 



7 



.846 



.939 



.718 



.221 



81.8 



86.0 



76.8 



9.2 



8 



.869 



.953 



.745 



.208 



81.1 



84.9 



76.8 



8.1 



9 



.882 



.971 



.771 



.200 



80.4 



84.5 



76.2 



8.3 



10 



.885 



.973 



.780 



.193 



79.9 



84.0 



76.0 



8.0 



11 



.880 



.976 



776 



.200 



79.4 



82.8 



75.8 



7.0 



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

 Thermometers are derived from the observations made at the several hour* 

 during the month. 



