Meteorological Observations. 



xv n 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of March 1869. 



Latitude 22° 33' 1" North. Longitude 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 Hygroraetrieal elements 

 dependent thereon. 



Date. 



o f-* 



is £^ 



Range of the Barometer 

 during the day. 



Max. 



Min. j Diff. 





Bange of the Tempera- 

 ture during the day. 



Max. 



Min. 



Diff. 



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 

 29 

 30 

 31 



Inches. 



Inches. 



Inches. 



29.932 



30.016 



29.862 



.867 



29.933 



.808 



.863 



.931 



.797 



.904 



.966 



.834 



.925 



.987 



.865 



.913 



30.030 



.815 



.900 



29.997 



.820 



.868 



.941 



.814 



.904 



.987 



.841 



.934 



30.092 



.843 



.883 



29.966 



.819 



.870 



.960 



.809 



.848 



.925 



.783 



.821 



.889 



.756 



.807 



.865 



.749 



.874 



.952 



.834 



.855 



.926 



.800 



.844 



.921 



.797 



.803 



.875 



.731 



.806 



.890 



.749 



.825 



.892 



.770 



.877 



.955 



.812 



.883 



.971 



.812 



.878 



.954 



.806 



.852 



.944 



.790 



.841 



.926 



.775 



.848 



.939 



.774 



.892 



.963 



.828 



.893 



.960 



.839 



.886 



.949 



.818 



.897 



.974 



.849 



Indies. 



0.154 

 .125 

 .134 

 .132 

 .122 

 .215 

 .171 

 .127 

 .146 

 .249 

 .147 

 .151 

 .142 

 .133 

 .116 

 .118 

 .126 

 .124 

 .144 

 .141 

 .122 

 .143 

 .159 

 .148 

 .154 

 .151 

 .165 

 .135 

 .121 

 .131 

 .125 



77.9 

 79.8 

 86.5 

 77.9 

 79.8 

 75.4 

 73.5 

 75.7 

 78.7 

 73.2 

 75.5 

 78.6 

 80.4 

 81.9 

 83.4 

 82.8 

 84.0 

 81.7 

 81.0 

 80.5 

 77.9 

 78.0 

 78.3 

 S2.3 

 81.6 

 84.1 

 83.9 

 82.6 

 83.6 

 82.8 

 81,4 



86.8 

 88.3 

 89.5 

 81.5 

 86.5 

 84.5 

 79.5 

 83.0 

 86.8 

 76.5 

 83.5 

 87.7 

 88.5 

 89.8 

 92.7 

 89.7 

 93.4 

 87.9 

 92.5 

 89.4 

 85.6 

 87.5 

 87.4 

 90.5 

 89.5 

 92.3 

 93.8 

 91.4 

 92.0 

 92.0 

 94.5 



71.5 

 73.6 

 74,0 

 76.0 

 74.4 

 68.8 

 68.0 

 68.6 

 71.6 

 65.8 

 68.0 

 71.4 

 74,3 

 76.0 

 76.8 

 78.0 

 76.8 

 76.5 

 74,5 

 73.6 

 73.7 

 69.0 

 70.4 

 75.4 

 755 

 76.9 

 76.5 

 75.5 

 76.0 

 75.0 

 74,7 



15.3 

 14.7 

 15.5 

 5.5 

 12.1 

 15.7 

 11.5 

 14.4 

 15.2 

 10.7 

 15.5 

 16.3 

 14.2 

 13.8 

 15.9 

 11.7 

 16.6 

 11.4 

 18.0 

 15.8 

 11.9 

 18.5 

 17.0 

 15.1 

 14.0 

 15.4 

 17.3 

 17.9 

 16.0 

 17.0 

 19.8 



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

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

 the day. 



