Meteorological Olservailons 



xxvu 



Abstract of the Results of the Hourly Meteorological Ohservations- 



taken at the Surveyor General's Office, Calcidta, 



in the 7mnth of Ajml 1872» 



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



dependent thereon. 



Eange of the Tempera- 

 tnre for each hour 

 during the month. 



Hour. 



Mean Height of 



the Barometer at 



32° Faht. 



I?ange of tlie Barometer 



for each hour during 



the month. 



§1 

 1^ 



Max. 



Min. 



Diff. 



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. 



29.775 

 .764 

 .754 

 .744 



.740 

 .753 



.768 

 .791 

 .812 



.825 

 .828 

 .818 



.800 

 .771 

 .741 



.711 

 .694 

 .689 

 .695 

 .715 

 .740 

 .764 

 .778 

 .776 



Inches. 



29.947 

 .942 

 .935 

 .929 

 .923 

 .932 

 .943 

 .999 



30.003 

 .020 

 .030 

 .014 



29.990 

 .962 

 .927 

 .903 

 .874 

 .866 

 .875 

 .893 

 .903 

 .922 

 .952 

 .956 



Inches. 



29.622 

 .613 

 .606 

 .594 

 .585 

 .592 

 .604 

 .625 

 .657 

 .673 

 .676 

 .664 



.654 

 .623 

 .591 

 .565 

 .519 

 .532 

 .543 

 .571 

 .592 

 .609 

 .642 

 .625 



Inches 



0.325 

 .329 

 .329 

 .335 

 .338 

 .340 

 .339 

 .374 

 .346 

 .347 

 .354 

 .350 



.336 

 .339 

 .336 

 .338 

 .355 

 .334 

 .332 

 .322 

 .311 

 .313 

 .310 

 .331 



81.1 



80.7 

 80.3 

 80.0 

 79.7 

 79.3 

 79.2 

 79.8 

 82.4 

 85.7 

 88.3 

 90.5 



92.0 

 93.4 

 94.1 

 94.2 

 93.1 

 91.6 

 89.2 

 86.3 

 81.8 

 83.7 

 82.3 

 81.7 



84.5 

 84.5 

 84.4 

 84.4 

 84.5 

 84.3 

 84.5 

 85.0 

 86.5 

 89.0 

 92.4 

 95.5 



96.7 

 98.8 

 100.0 

 100.5 

 99.4 

 98.0 

 94.7 

 91.0 

 89.0 

 86.5 

 85.5 

 85.0 



76.2 

 76.0 

 75.0 

 74.0 

 73.0 

 72.0 

 71.6 

 71.5 

 73.8 

 75.7 

 76.0 

 76.8 



78.0 

 78.6 

 79.0 

 81.5 

 83.0 

 82.6 

 81.6 

 78.9 

 78.0 

 77.3 

 75.5 

 76.2 



8.3 

 8.5 

 9.4 

 10.4 

 11.5 

 12.3 

 12.9 

 13.5 

 12.7 

 13.3 

 16.4 

 18.7 



18.7 

 20.2 

 21.0 

 19.a 

 16.4 

 15.4 

 13.1 

 12.1 



ii.a 



9.2 



10.0 



8.8 



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. 



