s 
519 
[3] 
TRANSFORMATION OF SALT MARSHES INTO FISH-PONDS, 
way; towards the right, and adjoining the bridge, a post, with slides 
for a large sluice-gate; farther on, another post with slides for the 
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“sleeve”; and on the left, towards the Arcachon basin, a third post, 
with slides for a net. 
