Meteorological Observations. 



xxvu 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor GeneraVs Office, Calcutta, 

 in the month of April, 1S58. 



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

 dependent thereon. 



1 



o cu 



Ran»e of the Barometer for 



■S £ 



Range of the Te 



mpera- 



Hour. 



4J S J 



each 1 



our durin 

 month. 



g the 





ture for e;ich 1 

 during the 

 month. 



our 



















CD -w 03 



Max. 



Min. 



Diff. 



CO r. 



Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 







o 







o 



Mid- 

 night. 



29.781 



29.845 



29.696 



0.149 



81.5 



83.6 



76.3 



7.3 



1 



.771 



.822 



.675 



.147 



81.1 



83.0 



76.0 



7.0 



2 



.755 



.802 



.667 



.135 



80.8 



83.4 



74.8 



8.6 



3 



.748 



.812 



.666 



.146 



80.2 



82.8 



74.2 



8.6 



4 



.758 



.818 



.681 



.137 



79.8 



81.8 



73.7 



8.1 



5 



.771 



.840 



.688 



.152 



79.3 



81.8 



73.0 



8.8 



6 



.793 



.860 



.701 



.159 



79.0 



81.6 



72.7 



8.9 



7 



.814 



.876 



.726 



.150 



79.8 



82.7 



74.2 



85 



8 



.837 



.908 



.749 



.159 



83.1 



86.0 



79.0 



7.0 



9 



.848 



.920 



.752 



.168 



86.3 



88.8 



82.6 



6.2 



10 



.848 



.912 



.747 



.165 



89.1 



92.3 



86.0 



6.3 



11 



.835 



.889 



.727 



.162 



91.7 



95.6 



87.6 



8.0 



Noon. 



.810 



.867 



.698 



.169 



93.4 



98.3 



90.0 



8.3 



1 



.778 



.838 



.662 



.176 



94.8 



100.0 



89.0 



11.0 



2 



.747 



.816 



.632 



.184 



95.2 



101.3 



84.6 



16.7 



3 



.718 



.782 



.597 



.185 



95.3 



101.6 



87.7 



13.9 



4 



.698 



.766 



.572 



.194 



9*4.5 



101.1 



88.7 



12.4 



5 



.692 



.766 



.566 



.200 



92.5 



100.0 



87.6 



12.4 



6 



.702 



.774 



.598 



.176 



89.6 



94.3 



85.8 



8.5 



7 



.727 



.808 



.622 



.186 



87.1 



91.4 



84,2 



7-2 



8 



.755 



.847 



.646 



.201 



84.7 



88.3 



72.6 



15.7 



9 



.782 



.881 



.665 



.216 



83.5 



86.0 



74.0 



12.0 



10 



.787 



.887 



.678 



.209 



82.6 



81,8 



73.4 



11.4 



11 



.781 



.871 



.669 



.205 



82.0 



83.7 



73.6 



10.1 



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

 Thermometers arc derived from the observations made at the several hours 

 during the month. 



