Meteorological Observations. 



he 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of October 1867. 



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

 dependent thereon. 



Pino ?1 



Bange of the Barometer 



for each hour during 



the month. 



Mas. 



Min. 



Diff. 



SI 



Bange of the Tempera- 

 ture for each hour 

 during the month. 



Max. 



Min. 



Diff. 



Mid- 

 night. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 

 11 



Noon. 



1 



2 



3 



4 



5 



6 



7 



8 



9 

 10 

 11 



Inches. 



29.883 

 .873 

 .865 

 .858 

 .857 

 .872 

 .889 

 .905 

 .924 

 .937 

 .939 

 .921 



.899 

 .871 

 .847 

 .830 

 .828 

 .832 

 .847 

 .863 

 .882 

 .896 

 .903 

 .896 



Inches. 



29.949 

 .940 

 .935 

 .934 

 .929 

 .938 

 .951 

 .974 

 .998 



30.008 

 .003 



29.981 



.965 

 .937 

 .912 

 .892 

 .887 

 .901 

 .921 

 .919 

 .939 

 .950 

 .959 

 .955 



Inches. 



29.813 

 .795 

 .790 

 .783 

 .802 

 .815 

 .821 

 .840 

 .855 

 .862 

 .860 

 .842 



.833 

 .808 

 .776 

 .755 

 .767 

 .773 

 .782 

 .793 

 .811 

 .841 

 .843 



Inches. 



0.136 

 .145 

 .145 

 .151 

 .127 

 .123 

 .130 

 .134 

 .143 

 .146 

 .143 

 .139 



.132 

 .129 

 .136 

 .137 

 .120 

 .128 

 .139 

 .126 

 .128 

 .109 

 .116 

 .110 



78.9 

 78.5 

 78.1 

 77.9 

 77.6 

 77.4 

 77.2 

 78.1 

 80.6 

 82.6 

 83.9 

 85.1 



85.3 

 85.3 

 85.4 

 85.6 

 84.9 

 84.2 

 82.3 

 81.3 

 80.6 

 79.9 

 79.4 

 79.0 



82.6 

 82.2 

 82.0 

 81.6 

 81.5 

 81.3 

 81.0 

 81.5 

 84,0 

 86.8 

 87.2 

 88.0 



89-4 

 90.0 

 89.5 

 90.0 

 89.6 

 89.0 

 86.6 

 85.0 

 84.5 

 84.0 

 83.5 

 82.8 



73. 



72. 

 72. 

 71. 

 70. 

 70. 

 69. 

 7<), 

 74, 

 74. 

 74, 

 74 



73.4 

 73.0 

 73.0 

 73.0 

 72.4 

 72.2 

 71.6 

 71.0 

 70.8 

 71.0 

 71.0 

 70.6 



9.6 

 9.7 

 9.6 

 10.3 

 11.0 

 11.3 

 11.5 

 10.9 

 10.0 

 12.1 

 12.7 

 13.6 



16.0 

 17.0 

 16.5 

 17.0 

 17.2 

 16.8 

 15.0 

 14.0 

 13.7 

 13.0 

 12.5 

 12.2 



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

 Thermometer Means are derived from the observations made at the several 

 hours during the month. 



