of the Salmon in Fresh Water. 



TABLE I. 



TABLE OF FISH EMPLOYED. 

 For Bacteriological Cuttivativns. 



Table II. (at p. 26 of the preceding section) further divides the total 

 number into those caught at the river mouth and in the upper waters 

 during different seasons of the year. All the fish captured in March 

 came from the river mouths. During May and June four came from 

 the lower, and three from the upper reaches. The July and August 

 fish comprised nine from the river mouths, and four from the upper 

 waters; of those captured from September to December nine came from 

 the mouths and five from the higher parts. 



2. METHODS. 



In the case of each fish used for the purpose of determining the number 

 and character of the micro-organisms present in the alimentary canal, 

 " stick " cultivations were made on gelatine roll-tubes directly from the 

 contents of the oesophagus, the stomach, and the intestine. As nearly 



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