138 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Neither, unless one knows exactly what has been done, 
can we unhesitatingly accept the statement that a definite 
batch of mussels caused enteric fever in the person eating 
them; nor can the original diagnosis of enteric fever always 
be accepted as true; nor can it be quite certain, In most 
cases, that there were not other equally probable causes 
of the disease should the nature of the latter be verified. 
Also, the mussels analysed and reported upon were often 
simply described as shell-fish coming from the locality of 
the railway station from which they were carried to the market. 
Since the same railway station often serves mussels taken 
from polluted and unpolluted beds, serious mistakes may thus 
be made. Some instances of such mistakes have recently 
come to our notice. 
Relaying Operations in the Lune Estuary. 
In consequence of the complaints referred to above, a 
conference was held at Glasson Dock. Dr. Jenkins and I met 
the local fishermen and their representatives, and a provisional 
scheme of relaying was agreed upon. An Inspector of the 
Fishmongers’ Company had previously visited the district 
and, it was stated, had advised the fishermen that their mussels 
might be relaid anywhere on the foreshore, above the level 
of two hours ebb tide, on neap tides. | 
Three places were therefore suggested by the men as 
suitable for relaying, (1) on Crook Skear; (2) at Fishnet 
Point, near Glasson Dock ; (3) in the bight near the entrance 
of the Conder Brook, near Glasson Dock Railway Station ; 
(4) also, some men working on the Skears near Abbey Light 
wish to relay their mussels at a place there. 
Experiments were made, at the request of the fishermen, 
at each of these places. I was convinced that sites (2) and (3) 
were unsuitable; nevertheless, the tests weremade. A quantity 
of mussels were relaid at each of these four places, and samples 
of these uncleaned mussels were sent to me at the time when 
