Meleorolog ica I Observation s . 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January 1869. 



Latitude 22° 33' 1" North. LoDgitude 88° 20' 34* East. 



Height of the Cistern of the Standard Barometer above the sea level, 18.11 feet. 



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

 dependent thereon. 





O u 



Range of the Bai 



ometer 





Eange of the Tempera- 





"2 <U -ti 



SI'S 



during the day. 



Ml 



ture during the day. 



Date. 























a & 













Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 



o 



o 







o 



1 



30.073 



30.154 



30.026 



0.128 



64.4 



74.0 



56.7 



17.3 



2 



.106 



.182 



.061 



.121 



65.7 



75.4 



57.5 



17.9 



3 



.119 



.184 



.068 



.116 



68.1 



76.0 



60.6 



15.4 



4 



.103 



.196 



.022 



.174 



70.5 



76.3 



64.2 



12.1 



5 



.032 



.103 



29.969 



.134 



70.7 



78.0 



66.2 



11.8 



6 



.104 



.183 



30.054 



.129 



66.8 



76.2 



58.6 



17.6 



7 



.115 



.191 



.059 



.132 



67.0 



76.2 



59.0 



17.2 



8 



.096 



.186 



.028 



.158 



65.9 



74.5 



58.6 



15.9 



9 



.092 



.175 



.044 



.131 



66.3 



75.0 



59.0 



16.0 



10 



.106 



.178 



.052 



.126 



65.3 



75.4 



56.3 



19.1 



11 



.117 



.212 



.068 



.144 



66.7 



76.9 



58.5 



18.4 



12 



.112 



.197 



.049 



.148 



67.7 



78.0 



58.9 



19.1 



13 



.089 



.161 



.041 



.120 



69.7 



79.0 



61.0 



18.0 



14 



.123 



.190 



.063 



.127 



72.5 



80.0 



66.8 



13.2 



15 



.195 



.294 



.134 



.160 



69.7 



78.0 



62.0 



16.0 



16 



.130 



.220 



.066 



.154 



67.3 



77.0 



58.5 



18.5 



17 



.078 



.159 



.007 



.152 



67.2 



76.5 



59.2 



17.3 



18 



.044 



.119 



29.985 



.134 



68.0 



76.9 



59.7 



17.2 



19 



.058 



.148 



30.009 



.139 



67.9 



77.2 



60.2 



17.0 



20 



.081 



.168 



.019 



.149 



68.6 



78.8 



59.5 



19.3 



21 



.052 



.160 



29.965 



.195 



70.3 



81.2 



61.0 



20.2 



22 



29.983 



.074 



.919 



.155 



72.2 



82.4 



64.6 



17.8 



23 



.924 



29.998 



.871 



.127 



73.8 



83.3 



67.2 



16.1 



24 



.922 



.987 



.864 



.123 



74.9 



85.8 



68.5 



17.3 



25 



.967 



30.057 



.918 



.139 



72.7 



80.5 



66-0 



14.5 



26 



.985 



.062 



.935 



.127 



72.4 



80.5 



65.2 



15.3 



27 



30.000 



.066 



.942 



.124 



74.1 



80.2 



69.0 



11.2 



28 



.009 



.081 



.963 



.118 



69.3 



72.0 



67.5 



4.5 



29 



29.945 



.015 



.880 



.135 



72.2 



80.8 



65.0 



15.8 



30 



.942 



.114 



.900 



.114 



73.9 



80.0 



70.0 



10.0 



31 



.965 



.045 



.901 



.144 



73.9 



l 



80.6 



69.5 



11.1 



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

 Thermometer Means are derived, from the hourly observations, made during 

 he day. 



