Table 9«-— Number of observations in the area-process subclasses 



» The areas represented by the numbers are as follows: 1) Long 

 Island, Northern New Jersey, 2) Southern New Jersey, Delaware, 

 3) Chesapeake Bay, k) North Carolina, Florida, $) Gulf of 

 Mexico east of Mississippi delta, 6) Gulf of Mexico west of 

 the delta* 



Note : It is clear from this table that means for process 3 included 

 in only areas h and 6, Hence the conclusions regarding the 

 effects of process 3 are not independent of similar conclusions 

 regarding areas h and 6» Again, areas 3 and 5 contain only 

 process 1, hence a conQ)arison of areas 3 and 5 depends on a 

 single process and cannot be generalized to include other pro- 

 cesses. Some caution therefore should be exercised in claiming 

 great generality for the results of these analyses* 



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