In the October and subsequent samplings two additional sites were 

 established 152.4 and 304.8 meters from the zero point, resulting in 

 eight sampling sites per transect. Core samples for grain size 

 analysis were taken at all sites, rather than at every other site. The 

 final extraction technique used was identical to the final technique 

 used on the ocean material but tapwater was substituted for the MgCl2- 

 seawater solution. These changes and the resulting final plan are 

 discussed in detail in the text in Section II, 3. 



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