Meleoroloyicul Observations. 



lxxviii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of October 1868. 



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 Hygrometrical elements 

 dependent thereon. 



Date 



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 



f -I O +3 



S ° rv 



Range of the Barometer 

 during the day. 



Max. 



Min. 



Inches. 



29.787 

 .775 

 .773 

 .760 

 .755 

 .737 

 .745 

 .750 

 .767 

 .820 

 .838 

 .863 

 .870 

 .872 

 .869 

 .907 

 .941 

 .946 

 .956 

 .942 

 .910 

 .872 

 .876 

 .886 

 .876 

 .903 

 .945 

 .961 

 .942 

 .935 

 .962 



Inches. 



29.854 

 .838 

 .821 

 .825 

 .801 

 .791 

 .811 

 .810 

 .823 

 .880 

 .902 

 .923 

 .913 

 .950 

 .929 

 .962 



30.004 

 .015 

 .030 

 .012 



29.982 

 .935 

 .953 

 .963 

 .940 

 .965 



30.025 

 .035 

 .017 

 .017 

 .042 



Incites. 



29.719 

 .712 

 .714 



.707 

 .705 

 .680 

 .692 



.701 

 .721 

 .781 

 .792 

 .812 

 .821 

 .826 

 .821 

 .867 

 .890 

 .888 

 .904 

 .899 

 .855 

 .810 

 .826 

 ,840 

 .823 

 .860 

 .901 

 .909 

 .880 

 .874 

 .905 



Dill*. 



Inches. 



0.135 

 .126 

 .107 

 .118 

 .006 

 .111 

 .119 

 .109 

 .102 

 .096 

 .110 

 .111 

 .119 

 .124 

 .108 

 .095 

 .114 

 .127 

 .126 

 .113 

 .127 

 .125 

 .127 

 .123 

 .117 

 .105 

 .124 

 .126 

 .137 

 .143 

 .137 



"A 



r^ o 



£ H 



83.2 



84.2 



84.2 



83.9 



83. 1 



81.9 



81.8 



81.4 



84.0 



83.0 



82.9 



83.6 



85.4 



85.1 



83.2 



82.5 



83.1 



82.5 



81.7 



81.7 



82.0 



81.0 



70.8 



80.4 



80.8 



80.9 



79.9 



79.5 



78.0 



77.5 



77.6 



Range of the Tempera- 

 ture during the day. 



Max. 



87.5 



88.5 



90.2 



87.7 



88.3 



90.0 



90.6 



90.0 



89.4 



88.4 



87.5 



87.7 



91.0 



92.1 



87.5 



88.7 



89.0 



87.6 



87.5 



87.3 



88.5 



88.0 



87.3 



87.0 



87.6 



87.2 



87.5 



86.5 



85.5 



85.4 



84.6 



Min. 



Diff. 



80.0 



80.5 



82.0 



81.0 



81.2 



81.5 



80.0 



80.4 



78.5 



77.8 



79.5 



79.6 



80.6 



80.0 



78.5 



78.0 



79.0 



77.0 



75.5 



76.4 



76.6 



75.0 



72.2 



73.7 



74.8 



76.0 



73.5 



73.0 



70.8 



71.5 



71.0 



/ .£> 



8.0 



8.2 



6.7 



7.1 



8.5 



10.6 



9.6 



10.9 



10.6 



8.0 



8.1 



10.4 



12.1 



9.0 



10.7 



10.0 



10.6 



12.0 



10.9 



11.9 



13.0 



15.1 



13.3 



12.8 



11.2 



14.0 



13.5 



14.7 



13.9 



13.6 



Tl 1 .Ii e ^ ea \? eigllt ° f i the Bar °meter, as likewise tl^DrT^dWeTBufe 

 2e2y m MeanS are denved > f ™ the hourly observations, made during 



