SEA-FISHERIES LABORATORY. 155 
channels, it seems unwise to proceed with the erection of 
tanks which might become unsuitably placed. 
I visited Portmadoc on 13th October, and saw the 
place which was suggested locally as suitable for the 
erection of a mussel cleansing tank. This was on the 
South slope of the Ffestiniog Railway embankment, in 
the angle between this and the ‘‘ New Wharf’’ (see my 
chart in the Annual Report for 1913). It did not seem 
to me to be a suitable place, and until a report has been 
obtained from a Surveyor as to the practicability of 
erecting a tank there at a reasonable cost the project can 
hardly be discussed. Samples of water were taken for 
analysis from the place suggested, and the results are as 
follows :— 
About 4 hour ebb, 24 sewage bacteria per cubic centimetre. 
-) = ee a 3 “5 
”” 13 ” ) 10 9 9) 
Le) 3 9) +) 7 9 bi) 
Meo? ss. io LO i 3 
ees rs) hs, : 6 > ” 
At about 3 hours’ ebb the sands South from the 
embankment had dried, and the samples were taken from 
different parts of a small channel running nearly parallei 
to the embankment. The contamination indicated by 
these samples was not excessive, but it is greater than is 
desirable. 
The most satisfactory provisional way of dealing 
with the Portmadoc mussels would be to take them to the 
tanks either at Aberdovey or Barmouth for treatment. 
I understood, however, that the fishermen were reluctant 
to agree to this proposal. 
A New Mussel Bed at Bardsea. 
On 4th October, Mr. A. Scott and I visited a mussel 
bed now forming at what is called Wadhead Scar, near 
