meteorological Observations. 



lvii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January, 1860. 



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. 





--»- i. 



















o 3 









•° c 











u a « 



Range ( 



>f the Barometer 



s 2, 



Range of the Tempera- 





jflf* 



during the da 



y- 



CD <o 



ture during the 



day. 





s da It 









r o 



















[ 





<u 



3 5 "3 



Max. 



Min. 



Diff. 



E <" 



Max. 



Min. 



Diff. 



p 



1" 









S^ 











Inches. 



Inches. 



Inches. 



Inches. 



















1 



Sunday. 

















2 



29.932 



30.005 



29.878 



0.127 



64.8 



75.4 



56.4 



19.0 



3 



.961 



.042 



.906 



.136 



66.0 



76.4 



59.0 



17.4 



4 



.981 



.052 



.935 



.117 



64.2 



75.4 



55.0 



20.4 



5 



30.002 



.092 



.942 



.150 



62.2 



72.1 



54.8 



17.3 



6 



29.960 



.036 



.900 



.136 



61.8 



72.8 



53.2 



19.6 



7 



.952 



.024 



.904 



.120 



64.4 



77.8 



54.4 



23.4 



8 



Sunday. 

















9 



.994 



.067 



.947 



.120 



67.9 



79.4 



58.1 



21.3 



10 



30.000 



.082 



.951 



.131 



65.9 



75.4 



57.4 



18.0 



11 



29.999 



.078 



.949 



.129 



62.8 



73.6 



54.5 



19.1 



12 



30.060 



.130 



.978 



.152 



62.4 



74.0 



52.7 



21.3 



13 



.109 



.203 



30.048 



.155 



63.1 



75.0 



52.8 



22.2 



14 



.081 



.158 



.015 



.143 



64.4 



76.1 



56.0 



20.1 



15 



Sunday. 

















16 



.051 



.153 



29.993 



.160 



64.4 



75.7 



55.6 



20.1 



17 



.068 



.149 



30.012 



.137 



64.0 



74.9 



56.0 



18.9 



18 



29.996 



.083 



29.925 



.158 



64.6 



76.4 



54.9 



21.5 



19 



.978 



.039 



.906 



.133 



68.5 



81.4 



57.5 



23.9 



20 



30.040 



.109 



.989 



.120 



69.2 



80.0 



63.0 



17.0 



21 



.039 



.122 



.971 



.151 



66.9 



78.2 



57.4 



20.8 



22 



Sunday. 

















23 



.010 



.086 



.954 



.132 



69.3 



82.2 



58.4 



23.8 



24 



29.982 



.062 



.917 



.145 



72.8 



83.2 



66.8 



16.4 



25 



30.030 



.102 



.979 



.123 



71.3 



80.6 



65.2 



15.4 



26 



.085 



.163 



30.027 



.136 



67.4 



76.6 



59.4 



17.2 



27 



.047 



.123 



29.974 



.149 



66.1 



77.0 



57.6 



19.4 



28 



.040 



.123 



.993 



.130 



67.1 



79.2 



57.2 



22.0 



29 



Sunday. 

















30 



.039 



.139 



.979 



.160 



70.5 



82.8 



61.0 



21.8 



31 



1 29.998 



.081 



.934 



1 .147 



72.1 



1 84.4 



62.8 



21.6 



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

 Thermometers are derived from the twenty-four hourly observations made during 

 the day. 



