igix] A CURRENT VANE 337 
then when all seemed well we found that the floe was not 
rising uniformly with the water. It is hung up by the 
beach ice. When we were considering the question of 
removing the whole apparatus to a more distant point, a 
fresh crack appeared between it and the shore, and on this 
' hinge ' the floe seems to be moving more freely. 
Friday, June 30, 191 1. — The temperature is steadily 
falling ; we are descending the scale of negative thirties 
and to-day reached its limit, - 39 0 . Day has manufactured 
a current vane, a simple arrangement : up to the 
present he has used this near the Cape. There is little 
doubt, however, that the water movement is erratic and 
irregular inside the islands, and I have been anxious to 
get observations which will indicate the movement in the 
' Strait.' I went with him to-day to find a crack which 
I thought must run to the north from Inaccessible Island. 
We discovered it about 2 to z\ miles out and found it to be 
an ideal place for such work, a fracture in the ice sheet 
which is constantly opening and therefore always edged 
with thin ice. Have told Day that I think a bottle weighted 
so as to give it a small negative buoyancy, and attached to 
a fine line, should give as good results as his vane and 
would be much handier. He now proposes to go one 
better and put an electric light in the bottle. 
We found that our loose dogs had been attacking a seal, 
and then came across a dead seal which had evidently 
been worried to death some time ago. It appears Demetri 
saw more seal further to the north, and this afternoon 
Meares has killed a large one as well as the one which 
was worried this morning. 
VOL. L Z 
