62 



Cold-Storage of Fish 



[Oct, 



The first groiip of determinations included water, ash, ammonium 

 nitrogen and total nitrogen. The determinations were made upon fish 

 from four of the dealer's lots in each of the three series of observations. 



The second groiip of determinations, comprising total, soluble and 

 non-coagulable nitrogen, together with the reaction of the aqueous ex- 

 tract, was made upon fish from seven of the dealer's lots (Series I). 



TABLE 3 



Series III. Flounders after nine months of cold storage. 



data, except as noted 



Percentage 



Lipins — Fish L149-P163, in four groups; aliquot portions of the fish in 

 each group were extracted together : 



Total amount of lipins in the undried flesh (per cent) — 0.442, 0.497, O.391, 

 0.442; average, 0.443. 



Acidity (mg. of KOH to neutralize l gm. of lipins) — 11 1, 130, I39. 130; 

 average, 127. 



* Expressed as c.c. of n/5 sodium hydroxid Solution required to neutralize 

 100 c.c. of extract. 



