Investigations on the Life-History 

 TABLE IV. Continued. 



2. ONLY IN 



No growths were obtained from the oesophagus in five fish four of 

 which were caught during the later months of the year, and one in May. 

 Two of the fish, during the autumn months, were from the upper reaches. 

 Similarly the tubes were sterile which were made from the stomach in 

 six fish three from the upper waters in November, May, and Jime, 

 three in October and November from the mouth. The nine fish from 

 whose intestines no growth, was obtained were all caught at the mouth 

 two in March, one in May, one in June, one in July, two in August, 

 one in September, and one in November. 



(b) Moulds. 



In many instances the colonies observed were entirely made up of 

 moulds : thus in nine cases from the oesophagus, in the same number from 

 the stomach, and in four from the intestine, this class of organism was 

 present alone. 



In the fish caught at the river mouths in March the appearance of 

 moulds, apart from other growths, was frequent : thus in the oesophagus 

 of five fish, in the stomach of three, and in the intestine of one caught 

 during March, only moulds developed in the tubes. The majority of the 

 other instances of such single growth occurred in May and June, only 

 three belonging to a later period of the year. All the five fish which 

 belong to this class (from the upper reaches) were captured in June. 



to 



of Liquefying Bacteria. 



No bacteria capable of liquefying gelatine were grown from different 

 sections of the alimentary tract in several fish. This class includes the 

 cultivations in which non-liquefying bacteria, either alone or along with 

 moulds, were present. 



In one fish caught at the river mouth, in July 1896, no liquefying 

 colonies were observed in any of the tubes made from its alimentary 

 tract. The oesophageal contents were free from liquefying colonies in 



