SEA-FISHERIES LABORATORY. 429 



deposited beneath the eddy at Penhelyg, where there is a 

 deep pool from which mussels are taken. 



As regards ebb tides the flow of the sewage is bound 

 to be all round the wharf, whatever the wind, and it sub- 

 sequently skirts the beach. You will notice that on 

 November 26th, with the wind W.N.W., the drift of the 

 floats was still close inshore. I am of the opinion that, at 

 any rate at neap tides, the greater amount of sewage 

 does not get carried out to sea at all, but moves up and 

 down within the bounds shown on the map. That this is 

 so to a certain extent, is shown by the fact I mentioned 

 earlier in the report, of my finding the two floats at prac- 

 tically the same spot where they had gone aground the day 

 previous. 



If the sewage is liberated on the ebb, the conditions 

 about the wharf and along the beach must be particularly 

 objectionable in summer, and it is easy to understand the 

 authorities releasing it on the flood when the town is full 

 of visitors. Even with the small winter population the 

 conditions are fairly bad, and on my last visit I could see 

 the sewage on the sand about the pier at low tide, within 

 20 yards of where two or three men had their boats moored 

 raking mussels. I think it is only fair to say I could see 

 no trace of it along the shore, West of the pier ; neverthe- 

 less, it is particularly evident that mussels fished in the 

 vicinity of the wharf are unfit for human consumption. 



The mussels this year are not very plentiful, the 

 average take being about one-half to three-quarters of a 

 bag a tide per man. Those which I saw in one of the 

 men's boats were of very good size. As a rule six to eight 

 boats were generally to be seen at low tide between the 

 wharf and Penhelyg. 



