Meteorological Observations. 



lxxxvii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of November 1875. 



Latitude 22° 33' \" North. Longitude 88° 20' 3-1" East. 



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



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



dependent thereon. 





Mean Height of 

 the Barometer 

 at 32° Faht. 



Range of the Barometer 

 during the day. 



fit 



Bange of the Tempera- 

 ture during the day. 



Date. 



Max. 



Min. 



Diff. 



Max. 



Min. 



Diff 



Inches. 



1 



29.908 



2 



.935 



3 



.922 



4 



.929 



6 



.985 



6 



.983 



7 



.961 



8 



.938 



9 



.966 



10 



.999 



11 



.999 



12 



30.023 



13 



.080 



14 



.063 



15 



.036 



16 



.060 



17 



.075 



18 



.022 



19 



29.983 



20 



.964 



21 



.957 



22 



.975 



23 



.973 



24 



.984 



25 



.981 



26 



.990 



27 



30.009 



28 



29.988 



29 



.977 



30 



.971 



Inches. 



Inches. 



Inches. 







29.980 



29.868 



0.112 



76.9 



30.003 



.887 



.116 



75.7 



29.986 



.867 



.119 



76.8 



.985 



.884 



.101 



77.9 



30.055 



.938 



.117 



76.7 



.060 



.915 



.145 



77.5 



.030 



.906 



.124 



77.0 



.009 



.890 



.119 



76.3 



.037 



.921 



.116 



75.7 



.074 



.953 



.121 



75.0 



.071 



.947 



.124 



75.6 



.100 



.964 



.136 



75.5 



.149 



30.027 



.122 



75.9 



.140 



.008 



.132 



75.3 



.093 



29.993 



.100 



74.4 



.121 



30.005 



.116 



73.9 



.149 



.023 



.126 



72.9 



.103 



29.967 



.136 



72.2 



.066 



.929 



.137 



71.6 



.032 



.909 



.123 



71.3 



.030 



.900 



.130 



71.5 



.057 



.914 



.143 



71.5 



.054 



.912 



.142 



70.5 



.067 



.913 



.154 



69.0 



.058 



.927 



.131 



69.6 



.052 



.939 



.113 



69.7 



.090 



.951 



.139 



70.1 



.061 



.923 



.138 



70.6 



.055 



.921 



.134 



71.0 



.045 



.910 



.135 



72.5 



85.0 

 83.8 

 84.8 

 85.8 

 85.0 

 86.0 

 84.5 

 84.0 

 83.5 

 83.5 

 83.0 

 83.3 

 84.4 

 83.2 

 81.6 

 82.2 

 82.6 

 81.5 

 80.5 

 79.9 

 79.2 

 79.5 

 79.9 

 78.0 

 79.5 

 79.0 

 79.5 

 80.5 

 SO. 2 

 81.5 



70.0 

 69.0 

 69.5 

 72.5 

 70.0 

 70.6 

 71.2 

 69.0 

 68.5 

 68.0 

 69.0 

 69.0 

 68.6 

 68.4 

 68.0 

 66.5 

 64.5 

 64.3 

 63.6 

 64.0 

 65.3 

 65.0 

 61.5 

 61.3 

 61.8 

 61.6 

 62.0 

 62.6 

 63.2 

 65.0 



o 



15.0 

 14.8 

 15.3 

 13.3 

 15.0 

 15.4 

 13.3 

 15.0 

 15.0 

 15.5 

 14.0 

 14.3 

 15.8 

 14.8 

 13.6 

 15.7 

 18.1 

 17.2 

 16.9 

 15.9 

 13.9 

 14,5 

 18.4 

 16.7 

 17.7 

 17.4 

 17.5 

 17.9 

 17.0 

 16.5 



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

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

 several hours during the day. 



