134 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



no case was an organism giving all the reactions of the 

 B. typhosus isolated. It ought to be remembered, how- 

 ever, that our samples of Oysters, although of various 

 kinds and from different sources, were in no case, so far 

 as we are aware, derived from a bed known to be con- 

 taminated or suspected of typhoid. 



" 17. We have shown also the frequent occurrence, in 

 various shell-fish from the shops, of anaerobic spore- 

 bearing bacilli giving the characteristics of the B. 

 enteritidis sporogenes recently described by Klein. 



" 18. Consequently, as the result of our investigations, 

 and the consideration of much evidence, both from the 

 Oyster-growers' and the public health officers' point of 

 view, we beg to recommend — 



" (a) That the necessary steps should be taken to 

 induce the Oyster trade to remove any possible 

 suspicion of sewage contamination from the beds and 

 layings from which Oysters are supplied to the 

 market. This could obviously be effected in one of 

 two ways, either (1) by restrictive legislation and the 

 licensing of beds only after due inspection by the 

 officials of a Government Department, or (2) by the 

 formation of an association amongst the Oyster- 

 growers and dealers themselves, which should provide 

 for the due periodic examination of the grounds, 

 stores, and stock by independent properly qualified 

 inspectors. Scientific assistance and advice given 

 by such independent inspectors would go far to 

 improve the condition of the Oyster beds and layings, 

 to re-assure the public, and to elevate the Oyster 

 industry to the important position which it should 

 occupy. 



" (b) Oysters imported from abroad (Holland, 

 France, or America) should be consigned to a member 



