Meteorological Observations. 



xcv 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office^ Calcutta, 



in the month of December 1874. 



Lati tilde 2^° 33' Y Nortli. Longitude 88° 20' Ur East. 



Heit^litof tlie Cistern of the Standardliarometer above the sea level, 18.11 feet. 



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



dependent thereon. 



Eange of the Barometer 

 during the day. 



Max. 



Min. 



DiflT. 





Eange of tlie Tempera- 

 ture during the day.. 



Max. 



Min. 



DifF 



3 

 4 

 5 



6 

 7 

 8 

 9 



iO 

 11 

 12 

 13 

 U 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 



Inches. 



Inches. 



Inches. 



30.039 



30.110 



29.984 



.032 



.112 



.972 



.051 



.128 



30.001 



.063 



.138 



.010 



.058 



.119 



.005 



.069 



.143 



.020 



,072 



.146 



.022 



.072 



.151 



.020 1 



.047 



.109 



.007 



.049 



.133 



29.990 



.045 



.122 



.984 



.066 



.149 



30.009 



.057 



.144 



29.982 



.022 



.098 



.966 



.043 



.111 



30.003 



.068 



.148 



.018 



.069 



.140 



.016 



.052 



.139 



29.989 



.025 



.086 



.966 



.070 



.155 



30.022 



.050 



.142 



29.972 



.022 



.102 



.959 



.017 



.095 



.965 



.005 



.082 



.943 



29.949 



.031 



.882 



.928 



29.990 



.865 



.996 



30.055 



.959 



30.021 



.088 



.967 



.020 



.104 



.962 



.059 



.132 



.995 



.072 



.157 



30.019 



Inches. 



0.126 

 .140 

 .127 

 .128 

 .114 

 .123 

 .124 

 .131 

 .102 

 .143 

 .138 

 .140 

 .162 

 .132 

 .108 

 .130 

 .124 

 .150 

 .120 

 .133 

 .170 

 .143 

 .130 

 .139 

 .149 

 .125 

 .096 

 .121 

 .142 

 .137 

 .138 



68.9 

 68.4 

 68.2 

 68.8 

 68.4 

 67.8 

 67.9 

 67.7 

 69.2 

 70.5 

 69.9 

 67.4 

 68.2 

 69.1 

 67.4 

 64.5 

 65.1 

 65.5 

 64.2 

 63.2 

 62.4 

 61.9 

 63.6 

 65.1 

 67.2 

 68.6 

 67.0 

 67.7 

 68.3 

 68.7 



78.3 

 77.5 

 77.0 

 77.5 

 77.2 

 77.6 

 76.8 

 76.5 

 78.8 

 78.3 

 77.9 

 76.5 

 76.8 

 78.0 

 76.4 

 74.0 

 74.5 

 74.5 

 73.5 

 73.0 

 72.3 

 71.0 

 74.7 

 76.0 

 78.7 

 79.0 

 76.5 

 76.0 

 78.2 

 79-3 

 77.3 



61.8 

 61.5 

 60.0 

 61.9 

 60.5 

 60.0 

 60.7 

 60.5 

 61.0 

 63.8 

 64.6 

 60.5 

 60.2 

 61.0 

 61.0 

 57.5 

 57.3 

 58.5 

 56.4 

 54.7 

 53.9 

 54.2 

 55.5 

 56.3 

 57.8 

 61.0 

 58.0 

 61.0 

 59.5 

 60.5 

 60.0 



16.5 

 16.0 

 17.0 

 15.6 

 16.7 

 17.6 

 16.1 

 16.0 

 17.8 

 14.5 

 13.3 

 16.0 

 16.6 

 17.0 

 15.4 

 16.5 

 17^ 

 16.0 

 17.1 

 18.3 

 18.4 

 16.8 

 19.2 

 19.7 

 20.9 

 18.0 

 18.5 

 15.0 

 18.7 

 18.8 

 17.3 



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. 



