Meteorological Observations. 



Ixxvii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of October 1869. 



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

 dependent thereon. 





=4-1 -£ 

 O «3 



.Range 



of the Barometer 



rQ 



Range o 



* the Tempera- 





-+J t* 



for each hour during 



53 fH 



ture for each hour 





•^ S -+i 



"» S r rt 



the montl 





b3 



during 



the month. 



Hour. 

















eSHH CO 



Max. 



Min. 



Diff. 



3 ® 



s 3 ^ 



Max. 



Min. 



Diff. 





J3| 









&« 











Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



Mid- 



















night. 



29.823 



29.956 



29.569 



0.387 



79.2 



82.5 



73.2 



9.3 



1 



.813 



.949 



.541 



.408 



79.0 



82.0 



73.0 



9,0 



2 



.804 



.945 



.522 



.423 



78.6 



81.8 



72.5 



9.3 



3 



.796 



.947 



.515 



.432 



78.3 



81.6 



72.0 



9.6 



4 



.790 



.942 



.516 



.426 



77.9 



81.5 



71.8 



9.7 



5 



.805 



.955 



.604 



.351 



77.7 



81.0 



71.5 



9.5 



6 



.823 



.978 



.631 



.347 



77.5 



81.0 



71.0 



10.0 



7 



.845 



.995 



.660 



.335 



78.4 



- 82.5 



71.4 



11.1 



8 



.866 



30.010 



.700 



.310 



80.5 



85.6 



74.2 



11.4 



9 



.883 



.022 



.750 



.272 



82.1 



86.8 



76.7 



10.1 



10 



.882 



.026 



.741 



.285 



83.5 



88.0 



77.6 



10.4 



11 



.867 



.003 



.720 



.283 



84.8 



89.3 



79.5 



9.8 



Noon. 



.840 



29.983 



.693 



.290 



85.9 



90.6 



81.2 



9.4 



1 



.811 



.952 



.661 



.291 



86.2 



90.5 



82.4 



8.1 



2 



.787 



.932 



.624 



.308 



86.2 



90.5 



81.0 



9.5 



3 



.775 



.923 



.602 



.321 



85.6 



90.3 



78.2 



12.1 



4 



.771 



.923 



.596 



.327 



84.6 



89.5 



78.2 



11.3 



6 



.776 



.935 



.597 



.338 



83.9 



89.2 



78-8 



10.4 



6 



.787 



.941 



.607 



.334 



82.3 



86.8 



78.5 



8.3 



7 



.803 



.954 



.629 



.325 



81.3 



86.0 



77.5 



8.5 



8 



.823 



.971 



.619 



.352 



80.7 



85.5 



76.0 



9.5 



9 



.837 



.983 



.620 



.363 



80.2 



84.4 



75.0 



9.4 



10 



.841 



.981 



.611 



.370 



79.7 



83.4 



74.5 



8.9 



11 



.837 



.975 



.583 



.392 



79.3 



82.6 



73.8 



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. 



