Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of February, 1865. 



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. 



5o| 



Date 



1 

 2 



3 

 4 

 5 



6 



7 



8 



9 



10 



11 



12 



13 

 14 

 15 

 16 

 17 

 18 

 19 



20 

 21 

 22 

 23 

 24 

 25 

 26 



27 



28 



Inches. 



30.002 

 .043 

 .036 

 .007 



Sunday. 



.008 

 29.986 

 .907 

 .891 

 .873 

 .900 

 Bimday. 



30.008 

 .038 

 .060 

 .062 



29.982 

 .913 



Sunday. 



.929 

 .903 

 .888 

 .940 

 .963 

 .949 

 Sundjay. 



.994 

 30.065 



Range of the Barometer 

 during the day. 



Max. 



Inches. 



30.070 

 .106 

 .115 

 .086 



.087 

 .092 

 29.990 

 .976 

 .953 

 .998 



30.101 

 .128 

 .157 

 .139 

 .064 



29.986 



30.025 

 .002 

 .000 

 .040 

 .066 

 .058 



.081 

 .157 



Min. 



Inches. 



29.946 

 .993 

 .986 

 .933 



.948 

 .909 

 .829 

 .846 

 .802 

 .835 



.939 



.985 

 30.015 



.004 

 29.901 



.851 



.876 

 .826 

 .830 

 .853 

 .870 

 .880 



.886 

 30.013 



Diff. 



Inches. 



0.124 



.113 



.129 



.153 



.139 

 .183 

 .161 

 .130 

 .151 

 .163 



.162 

 .143 

 .142 

 .135 

 .163 

 .135 



.149 

 .176 

 .170 



.187 

 .196 



.178 



.195 

 .144 



3 jg 



pq s 

 Q g 



71.8 

 72.1 

 73.0 

 73.0 



72.4 

 71.2 

 74,5 

 72.8 

 73.0 

 70.3 



72.8 

 71.5 

 71.7 

 72.9 



74.8 

 77.0 



78.6 

 78.4 

 77.0 

 76.3 

 76.6 

 74.3 



71.6 



72.2 



80,2 



Range of the Teno 



pera- 



ture during the 



day. 



Max. 



Min. 



Diff. 



o 



o 







79.2 



64.4 



14.8 



79.6 



66.6 



13.0 



81.2 



67.4 



13.8 



81.3 



66.2 



15.1 



80.4 



64.4 



16.0 



80.1 



61.2 



18.9 



84.6 



66.0 



18.6 



79.5 



69.2 



10.3 



81.2 



68.6 



12.6 



76.0 



66.6 



9.4 



80.1 



67.2 



12 9 



80.6 



62.2 



18.4 



81.4 



63.8 



17.6 



83.3 



62.6 



20.7 



84.6 



65.4 



19.2 



87.1 



68.0 



19.1 



87.8 



70.2 



17.6 



86.1 



70.6 



15.5 



85.0 



71.1 



13.9 



85.4 



67.6 



17.8 



87.0 



66.2 



20.8 



80.8 



68.8 



12.0 



78.2 



67.1 



11.1 



64.6 15.6 



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

 mometer Means arc derived from the hourly Observations made during the day. 



