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164 DISCUSSION ON INTERPRETATION OF ICE 
thing new. Everyone thought that the amount 
of open water between ice floes depended on 
how much ice there was pushing the floes to- 
gether. This is so. There is also the question of 
the sub-marine contours. 
Another correlation they have found is that 
between tidal movements and small fractures 
in ice, particularly ice which is fast to the shore. 
Another is that between the shape of puddles — 
which you have seen very well in Dr Teleki's 
pictures — and the sub-ice profiles, that is to say 
the countours of the underside of the ice. 
All these are very interesting points which I 
have not seen developed in any of our western 
literature, and I should like to hear from the 
Russians about it. We have only got one general 
paper from which I have derived this informa- 
tion. We have not the real observations on which 
the writer of the general paper based his re- 
marks. I should like to get them, I hope I shall. 
One final point on the subject of ice obser- 
vation from artificial satellites, I would like to 
point out that there have been a little more 
impetus given to this question at the recent 
meetings at Cambridge of the Special Committee 
of Arctic Research who have passed a resolution 
urging authorities using weather satellites to try 
to get high altitude pictures of ice distribution 
out of them. This is a helpful thing which could 
lead to interesting information from them. 
Capt RAGNAR THoRÉN: Time is up, and I 
should like to say that discussion will go on on 
Professor Telekis paper in Room 381 on 
Wednesday. 
I should like to take this opportunity of 
thanking all the speakers in this Session for their 
keen interest and co-operation. The meeting 
stands adjourned.