of Organic Bodies, 285 



the evaporated mass. In accordance with the second expe- 

 riment, we obtain the following arrangement for the salts : — 



Monobasic phosphate of potash . 2^'51 



Monobasic phosphate of soda . . 25*16 



Monobasic phosphate of lime . . 41*73 



Monobasic phosphate of magnesia 908 



Perphosphate of iron .... 1*79 



102-33 



The calculated amount of phosphoric acid is 70*18 per 

 cent. ; experiment gave 68*74 per cent. 



Muriatic extract. — The following is the composition of that 

 of the second experiment : — 



Lime 22*32 



Magnesia' . . . . , 2*98 



Peroxide of iron ... 3*71 



Phosphoric acid . . . 70*97 



99*98 



These salts are also metaphosphates, the iron compound 

 probably being excepted. They correspond to — 



Monobasic phosphate of lime . . 78*94 

 Monobasic phosphate of magnesia . 13*30 

 2Fe2 03, 3PO5 '. 8*66 



100'90 



The calculated amount of phosphoric acid would be 71*89 

 per cent. ; that found was 70*97 per cent. 



Jfesiduaty carbonaceous mass. — This, like the white of egg, 

 was also burnt in oxygen gas. Hence the results obtained in 

 the two experiments differ; in the first much less ash was 

 found than in the second. The latter consisted of — 



Potash 7*96 



Soda 6*75 



Lime 1304 



Magnesia 2*04 



Peroxide of iron . . . 099 



Phosphoric acid . . . 64*13 



Silica 2*76 



97*67 



These are also mostly metaphosphates; only a very small 

 quantity of the bases can be combined with pyrophosphoric 

 acid. 



