U'.STRACT OF OBSERVATIONS WITH FOX CIRCLES. 



101 



during the Voyage of H.M.S. Challenger, 1872-7G. 



Defli etors 

 or CI rains. 



Def. n. 



s. 



tr. .t s. 



Grs. 3-0 



2-5 



20 



1-5 



10 



Def. x. 



Grs 



3 

 2-5 

 2 

 1-5 

 10 



Def. n. 



s. 



x. & s. 



Grs. 3 



2-5 

 2 

 1-5 

 1-0 



Def. n. 



s. 



N. A S. 



Grs. 3 

 2-5 



20 

 1-5 

 10 



Total Force (British Units) (<j>). 



Angle. 



36 49 



43 38 

 60 17 

 56 48 



44 57 

 34 15 

 24 31 

 16 18 



Moan </>'. 



Correction 



for 



Ship's Head, 



Total Force. 



Remarks. 



10-274 



10-274 



10-285 



10-285 



Kew Observatory. 



I. 27 needle A. 



Date. 



1872. 

 Oct. 20. 



I. 27 needle B. 



C. 13 needle A. 



C. 13 needle B. 



1873. 

 July 3. 



