A general view of Block IV at low tide. 
Smooth cordgrass in foreground was planted 
18 January 1974. Photo taken 
22 February 1974. 
Figure 5. 
A general view of study Block I at low tide. 
Note the occurrence of natural shell on the 
soil surface. Smooth cordgrass in foreground 
was planted 20 May 1974. Photo taken 
20 September 1974. 
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