Meteorological Observations. xix 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office. Calcutta, 



in the month of March, 1865. 



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

 dependent thereon. 



Hour. 



w> o £ 



£ « o 



Mid- 

 night. 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 



Noon. 

 1 

 2 

 3 

 4 

 5 

 6 

 7 



9 

 10 

 11 



Inches. 



29.919 



.910 

 .898 

 .888 

 .888 

 .905 

 .926 

 .948 

 .975 

 .993 

 .998 

 .987 



.963 

 .934 



.898 

 .877 

 .867 

 .865 

 .872 

 .888 

 .906 

 .918 

 .928 

 .924 



Range of the Barometer 



for each hour during 



the month. 



Max. 



Inches. 



Min. 



Inches 



30.054 29.822 



.043 



.813 



.033 



.805 



.018 



.798 



.003 



.802 



.019 



.813 



.031 



.832 



.042 



.854 



.065 



.888 



083 



.906 



094 



.905 



088 



.896 



.071 



.040 



.005 



29.977 



.965 



.959 



.957 



.969 



[ .988 



'30.001 



| .015 



.008 



.872 

 .851 

 .811 

 .776 

 .770 

 .765 

 .777 

 .791 

 .812 

 .831 

 .837 

 .823 



Diff. 



Inch 



0.232 



.230 



.228 

 .220 

 .201 

 .206 

 .199 

 .188 

 .177 

 .177 

 .189 

 .192 



.199 

 .189 

 .194 

 .201 

 .195 

 .194 

 .180 

 .178 

 .176 

 .170 

 .178 

 .185 



"3 



<u 



m 



- 



>> 



o 



G 



s 



S3 



93 





H 







fH 





75.0 



74.3 



73.7 



73.2 

 72.7 

 72 2 

 717 

 72.3 

 75.4 

 78.8 

 81.7 

 84.2 



85.9 

 87.1 



88.0 

 88.1 



Range of the Temperature 

 for each hour during 

 the month. 



Max. 



81.3 



80.8 

 79.4 

 78.8 

 78.8 

 78.6 

 78.6 

 78.4 

 81.3 

 86.0 

 89.4 

 93.2 



95.0 

 96.2 

 97.6 

 97.8 



87.7 



97.6 



86.4 



96.1 



83.4 



91.6 



80.9 



88.0 



79.2 



85.2 



78.0 



83.8 



77.0 



82.2 



76.1 



81.4 



Min. 



68.0 



67.0 

 65.8 

 65.2 

 64.4 

 64.0 

 63.8 

 63.6 

 68 2 

 68.4 

 68.1 

 74.0 



74.2 

 75.0 

 76.0 

 75.6 

 74.9 

 72.6 

 71.8 

 70.8 

 70.2 

 69.6 

 70.3 

 70.0 



Diff. 



13.3 



13.8 

 13.6 

 13.6 

 14.4 

 14.6 

 14.8 

 14.8 

 13.1 

 17.6 

 21.3 

 19.2 



20.8 

 21.2 

 21.6 

 22.2 

 227 

 23.5 

 19.8 

 17.2 

 15.0 

 14.2 

 11.9 

 11.4 



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

 mometer- Means are derived from the Observations made at the several hours 

 during the month. 



