■ 'j lfrc ccXI j \\ pla it'. 
Observations of the 
MAGNETIC INTENSITY 
made in the Expedition commanded- by 
CAPT. SIR JAMES CLARK ROSS I 
May 1841. and August 1842. 
The observations of the Erebus toy in Jtivnun (huss-om 
I.uugitii 
