— 200 — 



Table V shovx's that, to dissolve the precipitate of molybdenum 

 phosphate arising from 100 e. e. of filtrate A, are required , in 

 average, 50.75 e. e. of "/^ NaOH, corresponding to 0.012 "/o phos- 

 phoriis ; and only 34.25 e. e. of "/- NaOH corresponding to 

 0.0076 o/o phosphorus, for filtrate C. 



Results, therefore, an increase of 0.0044 grms. of phosphorus 

 in 100 e. e. of filtrate A due to the action of the fennents. 



How much of the total phosphorus of the brain is soluble 

 in control research and how much in the main research i. e. 

 after the action of the ferments ? 



In table VI are surnmarized the data obtained in the expe- 

 riments 1 - 5 regarding the phosphorus content both in the fresh 

 brain and in the filtrates A and C. 



TABLE VI. 



We sce in table VI that the fresh brain employcd contains, 

 in average, 3.26 "/oo phosphorus. Of this quantity 1.15 grms. 

 are soluble in filtrate A and only 0.77 grms. in filtrate C. 



Therefore, whilst in the control research are soluble only 24 



