Mariner's studies of the tide gauge records along the coast. In 

 Boston these go back for more than fifty years. In general they 

 show a continued rise in sea level which was, in New England, 

 at about a foot per century. I think that it should be borne in 

 mind that we do have that rather positive evidence of what has 

 happened recently. 



Raup: I tried to stay inside of the botanical evidence. 



Barghoorn: Marmer's figures were approximately .02 feet per year from 



1930 to 1937 and one -fifth of that rate in the preceding twenty 

 years, which would give you a value that comes closer to your 

 outside figure than this long range figure. 



Redfield: These measurements are being re-examined by Walter Munk at 



Scripps. There is a simultaneous change in the mean barometric 

 pressure for which apparently there are excellent records. This, 

 I think, takes up a certain amount of the fluctuation of the curve, 

 but I am not sure that it cancels the general trend. There may 

 be some quantitative readjustment of the trend. 



Raup: When we say that the change in sea level - the rise in sea level - 



has to be at about the rate of accumulation of peat we really don't 

 know what we are talking about. By that I mean we do not know 

 what the range of possibilities is. 



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