56 



Investigations on the Life-History 



dirty yellow-red deposit at the bottom of the tube, very similar in 

 appearance to Ihe sediment in urine due to amorphous urates. The 

 cultures soon acquired a disagreeable odour. Under the microscope long 

 thin motile bacilli were seen, many of them in pairs, or chains ; very 

 similar to the " roter " bacillus found in water. 



This class of organism was confined entirely to the salmon sent in for 

 examination in July and August, 1895. 



The actual fish from which they were obtained were as follows : 



2. Micro-organisms liquefying gelatine and forming a white deposit 

 at the lower end of the tubes. 



In one or two instances these organisms were further examined. In 

 No. XIII., July 25, 1895, very frvely motile bacilli, their length in 

 relation to their breadth being 2| as to 1, were found in the stomach. 

 They frequently were present in pairs. The gelatine was very rapidly 

 liquefied, and rendered strongly alkaline. 



Organisms rapidly liquefying gelatine and forming a white flocculent 

 deposit were grown from : 



3. Organisms colouring the liquefied -gelatine light yellow, and forming 

 a bright yellow deposit : 



