1836.] 



Horary Observations of the Barometer, #c. 



243 



IX. — Horary Observations of the Barometer, Thermometer, and wet- 

 bulb Thermometer, made at Calcutta on the 2\st and 22nd of March, 

 1836. By Mr. H. Barrow, H. C. Mathematical Instrument-maker. 









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1836. 







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Date. 



Hour 



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s 1 



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a o 

 r 3 



press 

 it Bu 

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££ 



* -3 



:QP2 r: 



V - _3 



21 March 



6* A.M 



49,97.' 



• 74, ( 



68,8 



69,5 



'..9,875. 



5,2 





7 



,99fc 



74,0 



6s, 



70,0 



,902 



6,0 





8 



.JO.OU 



75,0 



68,0 



74,0 



,917 



7,0 





9 



,01b 



76,0 



68,0 



76,2 



,917 



8,0 





10 



,031 



77,0 



69,2 



79,5 



,926 



7,8 





11 



04( 



78,5 



69,0 



81,0 



,931 



9,5 





Noon 



,02( 



80,0 



69,2 



81,8 



,912 



10,8 





1 



29,998 



81,0 



70,0 



83,0 



,881 



11,0 





2 



,975 



81,5 



71,0 



84,5 



,850 



10,5 





3 



,951 



81,8 



70,6 



83,5 



,831 



11,2 





4 



,926 



81,5 



70,0 



81,0 



,8or 



11,5 





5 



'926 



80,5 



69,3 



80,o 



,811 



11,2 





6 



,953 



7^,9 



69,2 



77,0 



,839 



10,7 





7 



,938 



77,1 



69,7 



71,0 



,833 



7,4 





8 



,957 



76,0 



69,0 



72,0 



,855 



7,0 





9 



30,001 



76,0 



69,9 



72,0 



,899 



6,1 





10 



29,971 



76,0 



68,0 



71,6 



,868 



8,0 





11 



,951 



74,9 



67,5 



71,0 



,852 



7,4 



22 Do... 



Midnt. 



,96i 



74,8 



70,0 



71,3 



,865 



4,8 



1 



,944 



75,1 



70,1 



70,0 



,845 



5,0 





2 



,942 



75,0 



70,5 



68,0 



,843 



4,5 





3 



,93!- 



75,0 



70,5 



68,0 



,839 



4,5 





4 



,932 



74,5 



70,0 



68,0 



,834 



4,5 





5 



,961 



75,0 



70,6 



67,0 



,862 



4,4 





6 



,982 



72,7 



68,0 



67,5 



,889 



4,7 





7 



30,000 



71,4 



68,0 



70,5 



,912 



3,4 





8 



,015 



73,0 



70,0 



74,0 



,912 



■ 3,0 





9 



,030 



74,6 



69,5 



74,0 



,932 



5,1 





10 



,040 



74,5 



69,3 



74,5 



,942 



5,2 





LI 



,028 



74,0 



68,3 



.75,0 



,932 



5,7 





Noon. 



,000 



74,5 



69,0 



78,0 



,902 



5,5 





1 



29,973 



75,0 



69,5 



77,5 



,871 



5,5 





2 



,947 



75,5 



69,0 



83,0 



,847 



6,5 





3 



,916 



76,5 



70,0 



79,5 



,813 



6,5 





4 



,904 



77,2 



69,5 



80,0 



,799 



7,7 





5 



,911 



78,0 



69,5 



80,0 



,803 



8,5 





6 



,91(i 



77,5 



70,0 



77,2 



,810 



7,5 



Remarks. 



Rain with thun- 

 der and light- 

 ning, which 

 continued part 

 of tiie next day. 



The above observations were made with a Barometer in every re- 

 spect the same as the one used on the 21st and 22nd of December last, 

 except that the bulb of the attached Thermometer is inserted in 

 the Barometer cistern to better ascertain the Temperature of the mer- 

 cury. The redaction of the Barometer to 32° is made by the formula 



B. 



t — 32 x.003 m and a constant "030 added for capillarity. 



H. B. 

 2 i 2 



