292 FOUNDERS OF OCEANOGRAPHY 



million, and this obvious method of treating polluted shell- 

 fish was suggested to the authorities. 



The regulation of the beds, however, eventually passed into 

 the hands of the Conway Corporation, and they, under the 

 supervision of the Board of Agriculture and Fisheries, 

 erected special purification tanks and water-circulating 

 apparatus, and introduced the method of treating the mussels 

 by sea-water containing a trace of chlorine. Thus successive 

 consignments of polluted mussels brought by the fishermen 

 are passed through the chlorinated sea-water before being 

 sent to market . In a country such as ours , where the estuaries 

 and the more densely populated shores, where shellfish are 

 grown and eaten, are liable to become increasingly infected 

 with sewage organisms, it is obviously most important that 

 scientific methods of both cultivation and purification of all 

 kinds of edible shellfish should be adopted without delay. 



