Meteorological Observations. 



xciv 



Abstract of the Results of the Hourly Meteorological Observation, 



taken at the Surveyor General's Office, Calcutta, 



in the month of December 1868. 



Latitude 22° 33' V North. Longitude 88° 20' 34," East. 



Heighfcof the Cistern of the Standard Barometer above the sea level, 18.11 feet. 



Daily Bfeani, &e. of the Observations and of the Hygrometrieal 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 



«*-. 







o 







HJ 







M 



U 



43 



br 



— 



— 









w 



- 



pq 



o 



V 



SQ 



'- — 



+a 



x 



— 



03 



[nches. 



30.013 

 .089 

 .115 

 .119 

 .112 

 .092 



.oro 



.029 

 .002 



29.997 

 .901 

 .911, 

 .992 



30.052 

 .093 

 .143 

 .112 

 .106 

 .071 

 .103 

 .048 

 .024 

 .043 

 .021 

 .026 

 .063 

 .017 

 .010 

 .005 

 .027 

 .066 



Range ol the Barometer g g Range of the Tempera- 

 during the day. - S ture during the day 



?1 I 



Max. Min. 



Diir. 





Max. Min. Diff. 



Inches. 



30.086 

 .163 



.184 

 .186 

 .161 



.157 



.111 



.065 



.074 



.034 



.015 



.070 



.137 



.156 



.206 



.200 



.177 



.136 



.194 



.123 



.103 



.134 



.103 



.091 



.146 



.098 



.084 



.090 



.116 



.166 



Indies. 



29.962 



30.039 



.049 



.060 



.051 



.027 



29.992 



.961 



.934 



.935 



.896 



.891 



.927 



30.001 



.028 



.088 



.081 



.033 



.019 



.061 



29.992 



.967 



.986 



.973 



.973 



.995 



.949 



.963 



.946 



.983 



30.018 



Indies. 



0.121 



.121 



.134 



.121. 



.136 



.134 



.165 



.150 



.121 



.139 



.139 



.124 



.143 



.136 



.128 



.118 



.119 



.144 



.117 



.133 



.131 



.136 



.148 



.130 



.118 



.151 



.149 



.121 



.144 



.133 



• 148 



68.6 

 68.0 

 67.9 



<;*.<; 



69.9 

 70.9 

 70.3 



69.6 

 69.0 



69.1 

 69.7 

 70.9 

 72.2 

 71.7 

 71.5 

 70.2 

 70.1 

 69.9 

 70.2 

 69.0 

 66.9 

 66.5 

 64.7 

 64.7 

 67.6 

 66.2 

 66.0 

 69.1 

 68.9 

 67.0 

 64.4 



76.0 



77.6 



77.5 



77.n 



79.0 



7'.i.5 



77.5 



77.7 



76.6 



77.2 



77.5 



79.5 



81.0 



80.0 



80.0 



79.0 



78.3 



78.5 



78.2 



76.4 



71.6 



71,0 



73.2 



73.7 



76.4 



75.7 



75.5 



79.1 



78.0 



74.4 



72.4 



60.0 

 59.5 



62.0 

 62.5 



62.5 

 64.0 



62 5 

 62.4 



62. 1. 



62.5 

 63.5 

 66.0 

 64.4 

 65.5 

 61.3 

 iS'l.o 

 62.2 

 65.0 

 63.2 

 60.0 

 59.5 

 56.5 

 56.0 

 59-8 

 58.5 

 57.0 

 61.4 

 61.0 

 61.5 

 58.0 



12. 5 



17.6 



18.0 



15.0 



16.5 



17.0 



J 3.5 



15.2 



14,2 



14.8 



15.0 



16.0 



15.0 



15.6 



14.5 



14.7 



15.8 



16.3 



13.2 



13.2 



14.6 



14.5 



16.7 



17.7 



16.6 



17.2 



18.5 



17.7 



17.0 



12.9 



14.4 



rh»? he M , eai l height of the Barometer, as likewise the Dry and Wet I 

 Thermometer Means are derived, from the hourly ob.ervatioL?maI during 



