Meteorological Observations. 



xxxv 



Abstract of the Besults of tie Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of May, 1857. 



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

 dependent thereon. 





Jjj 



Range of the Barometer 



"3 2 



Range of the Temperature 





£ a ■% 



for each hour d 



uring 



fri 



for each hour during 



Hour. 





the month 







the month 



• 





















Max. 



Min. 



Diff. 



C J3 



Max. 



Min. 



Diff. 





§ 









3 











Inches. 



Inches. 



Inches. 



Inches. 















o 



Mid- 

 night. 

 1 



29 .618 



29.726 



29.412 



0.314 



81.2 



85.4 



73.0 



12.4 



.603 



.719 



.408 



.311 



81.1 



84.8 



74.8 



10.0 



2 



.591 



.705 



.411 



.294 



80.9 



84.2 



74.7 



9.5 



3 



.582 



.696 



.400 



.296 



80.9 



84.0 



74.6 



9.4 



4 



.585 



.707 



.400 



.307 



80.7 



83.8 



74.5 



9.3 



5 



.600 



.719 



.405 



.314 



80.5 



83.3 



74.8 



8.5 



6 



.618 



.746 



.410 



.336 



80.8 



83.8 



75.0 



8.8 



7 



.637 



.765 



.416 



.349 



82.0 



85.4 



75.3 



10.1 



8 



.652 



.774 



.425 



.349 



84.4 



87.2 



77.0 



10.2 



9 



.658 



.787 



.431 



.356 



86.7 



90.8 



78.0 



12.8 



10 



.656 



.777 



.434 



.343 



89.2 



92.6 



80.0 



12.6 



11 



.643 



.776 



.427 



.349 



91.0 



95.2 



82.8 



12.4 



Noon. 



.627 



.766 



.415 



.351 



92.3 



96.4 



85.0 



11.4 



1 



.598 



.731 



.386 



.345 



93.6 



99.6 



87.6 



12.0 



2 



.570 



.693 



.364 



.329 



94.1 



99.4 



88.6 



10.8 



3 



.550 



.687 



.344 



.343 



93.7 



100.0 



80.6 



19.4 



4 



.530 



.679 



.337 



.342 



92.9 



99.9 



76.4 



23.5 



5 



.527 



.661 



.346 



.315 



91.4 



98.0 



73.6 



24.4 



6 



.543 



.658 



.367 



.291 



88.4 



94.0 



74.6 



19.4 



7 



.563 



.701 



.381 



.320 



85.8 



90.7 



75.6 



15.1 



8 



.589 



.734 



.402 



.332 



84 2 



88.6 



75.6 



13.0 



9 



.612 



.730 



.406 



.324 



83.5 



87.2 



75.5 



11.7 



10 



.620 



.740 



.398 



.342 



82.6 



86.6 



75.0 



11.6 



11 



.617 



.736 



.399 



.337 



81.6 



86.4 



69.0 



17.4 



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

 Thermometers are derived from the observations made at the several hours 

 during the month. 



