of the Salmon in Fresh Water. 



151 



culty. It has already been shown that the muscle contains an ample 

 supply of fats to meet all such requirements. 



It is the source of the phosphorus which requires investigation. The 

 insufficiency of the lecithin phosphorus of the muscle is shown in the 

 Table VI. 



TABLE VI. 



Phosphorus in Lecithin per Standard Fish. 

 ESTUARY FISH. 



UPPER- WATER FISH. 



60 

 64 

 67 



Average, 



Gain of ovaries, 2-861. Loss of muscle, 0-877. 



About 2 grms. of phosphorus in the lecithin of the ovary in the fish 

 of standard length is thus not derived from the phosphorus of the 

 lecithin of the muscle. 



(b) Is the phosphorus in other combinations in the muscles sufficient to yield 

 the phosphorus of the lecithin and other phosphorus-containing bodies 

 in the ovaries ? 



To determine this point, three typical fish from the estuaries from May 

 to August, and three typical fish from the upper waters in October and 

 November, were selected. 



TABLE VII. 



Percentage of Phosphorus not in Lecithin in Musde and Ovaries 

 ESTUARY FISH. 



UPPER- WATER FISH. 



