cxxm 
OBSERVATIONS ON THE VARIATION, 
MADE AT SEA IN H. M. S. HECLA, 1819. 
The Compasses used in these Observations were placed invariably on the 
stand which has been described as the position of a standard Compass. 
Walker's Azimuth Compass was used, unless where it is otherwise noted 
in the column of Remarks. 
The Latitudes and Longitudes are of the place of Observation, and were 
deduced by the Ship’s Log from the nearest observed. 
The Initials in the column specifying the Observer, are those of Captain 
Parry, Lieutenant Beechey, Mr. Hooper, and of Captain Sabine. 
