1913] Clayton S. Smith 63 



When this group of determinations was repeated on Series II and III, 

 four dealer's lots were used for each series. 



The third group consisted of determinations of lipins, water and 

 reducing power. Because of the small percentage of fat in the fish, all 

 of the dealer's lots (six) in this group were drawn upon in each of 

 the three series of observations. 



In performing a particular set of analyses, samples of flesh were 

 uniformly taken, as nearly as possible, from the same region. The 

 selected parts were in the right angles made by a line running from the 

 head to the tail and a line perpendicular to it about midway between 

 the mouth and the tail. The skin on the back was opened, turned over, 

 and flesh taken from all depths to the bone. Flesh near the viscera, 

 as well as remote from them, were included. The skin was not 

 analyzed. 



For convenience in Consulting the data, the following plan of tabu- 

 lation was adopted. Each capital letter in the accompanying tables 

 represents a dealer's lot of fish. The numeral following the capital 

 letter indicates an individual fish. Thus, B5 (Table i) represents a 

 particular fish that was fresh when analyzed. B75 (Table 2) indicates 

 a particular fish of the same lot which had been placed in cold storage 

 and analyzed six months later. The capital letter also indicates, in 

 terms of the appended summary, the date (in 191 1) when a particular 

 fresh fish was subjected to analysis (or placed in cold storage) : 



III. DISCUSSION OF RESULTS 



Water. From the tables it will be seen that, beginning with 

 lot L, there is an increase in content of water. The fish in lots A to D 

 were flukes or summer flounders, while those in lots L to R were 

 winter flounders. Apparently the water-content of the winter 

 flounder is about 3 per cent. higher than that of the summer variety. 

 Williams finds the water-content of the plaice (Plenronectes pla- 

 tessa) to be 79.86 per cent., while in the report of the U. S. Com- 

 missioner of Fish and Fisheries the value for the same fish is 77.39 

 per cent. The government analyst also reports 85.04 per cent. of 

 water for the summer flounder and 84.35 P^r cent. for the winter 



