94 



RECORD AND REDUCTION 



Rbadinos of Aneroid Barometer 17701 on board the Yacht Fox. 

 September, 1859. 29 Inches +. Mean Lat. 58°.9 X., Long. 40°.9 W. 



8h. 



Noon. 



1.26 



1.18 

 1.11 



.78 

 .74 

 .68 

 .82 

 .88 

 .80 

 .82 

 .si 

 .> ; 



.'.HI 



.92 

 1.15 

 1.32 



1.26 



1.27 

 1.20 



.77 

 .66 

 .68 

 .85 

 .88 

 .82 

 .90 

 .Ml 

 .78 

 .91 

 .'.'2 

 .98 

 1.19 

 L.32 

 1.22 



4h. 



1.26 

 1.20 

 1.04 



.80 



.68 



.87 



.86 



.89 



.86 



.81 



.84 



.98 



.93 



1.00 



1.24 



1.30 



1.20 



8i>. 



1.23 

 1.20 



.98 

 .81 



.70 



.88 



.85 



.94 



.88 



.84 



.94 



.96 



.'.'2 



1.01 



1.30 



1.30 



1.18 



Midnight. 



1.20 



1.16 



.90 



.80 



.73 



.90 



.80 



.94 



.82 



.89 



.96 



.94 



.90 



1.03 



1.30 



1.30 



1.18 



Additional Readings of the Marine Mercurial Barometer, between September, 1857, 



and April, 1858. 

 A description of the Marine Barometer adopted by Her Majesty's government, 

 on the recommendation of the Kew Observatory Committee of the British Associa- 

 tion for the Advancement of Science, will be found in the appendix to the fourth 

 number of meteorological papers, published by authority of the Board of Trade. 

 London, 1860. 



The column for 4" A. M. was obtained by interpolation, the difference in the 

 aneroid readings of i 1 ' and 8 h ' was applied to the reading of the marine barometer 

 at 8 to gel the value for l 1 '-. 



The reduction to 32° was effected by means of Table XVII., C, of Guyot's 

 Meteorological Tables (Edition of 185S). 



The reading for 1 A. M., between October 1 and 20, being wanting, they were 

 supplied by means of differences of the aneroid readini 



3, as stated above. 



