30 



MEAT EXTRACTS. 



calcium, magnesium, and sodium. Phosphates and sulphates of cal- 

 cium and potassium, organic sulphur, and a small amount of insoluble 

 matter, principally silica, are also present. 



In Table XII figures are given showing the composition of the ash 

 of various meat extracts and miscellaneous preparations. As the 

 percentage of sodium chlorid shown in Table XII is much greater than 

 that present in the natural meat juice, the figures for the salt-free 

 ash are correspondingly lower. The amount of insoluble matter is 

 surprisingly high in several cases and it appears that some insoluble 

 substance must have been added. For comparison the following 

 results are quoted from K6nig, a showing the average composition of 

 the ash of meat extracts: 



Per cent. 



Potassium 42. 26 



Sodium .' 12. 74 



Calcium, 0. 62 



Magnesium 3.15 



Chad of iron 0. 28 



Results of the analysis of the ash of meat peptones are also given. 

 Konig states t hat the salts, especially the potash salts present in the 

 ash of meat extracts, are valuable on account of their action on the 

 nervous system. 



Table XII. — Analyses of the ash of meat extracts and miscellaneous preparations. 



Per cent. 



Phosphoric acid 30. 59 



Sulphuric acid 2. 03 



Silica : 0. SI 



Chlorin 9. 63 



Serial No. 



18152 

 18159 

 18161 

 18434 

 18435 

 18563 

 18584 

 18623 

 18624 

 19398 

 19399 

 19461 

 19707 

 19818 

 18460 

 18633 

 18636 

 19458 

 19460 

 19465 

 19467 

 18629 

 18635 

 18637 

 19817 

 18877 



Chlo- 

 rin as 

 sodium 

 chlo- 

 rid. 



Per 



cent. 

 39.78 

 40.85 

 63.47 

 41.39 

 82.13 

 34.22 

 53.23 

 75.27 

 33.64 

 32.65 

 Ml 86 

 37. 61 

 12.78 

 12.24 

 12.21 

 42.34 

 22.93 

 30.88 

 12.21 

 49.97 

 57.17 

 47.33 

 54.80 

 53.98 

 48.02 

 39.48 



Composition of salt-free ash. 



Insol- 

 uble 

 mat- 

 ter. 



Per 



cent. 



0.42 



.22 



.27 



4.66 



.67 



1.43 



1.62 







.74 



8.02 



9.05 



2.74 



9.97 



3.01 



29.38 



5.38 



1.70 



.61 



29.38 



5.74 



1.35 



11.35 



17.28 



.65 



3.46 



14.11 



Ferric 

 oxid. 



Per 



cent. 





(») 



Phos- 

 phoric 

 acid 

 (Ps0 5 ) 



Per 

 cent. 

 23. 26 

 25. 56 

 24.50 

 25.25 

 23.84 

 23.99 

 30.08 

 29.40 

 22.30 

 24.29 

 27.09 

 26.05 

 22.70 

 20.75 

 26.37 

 .69 

 28.31 

 37.53 

 3ft 37 

 32. 18 

 29.65 

 27.51 

 23.98 

 36. 05 

 24.53 

 16. 86 



Alkalin- 

 ity (N/10 

 hydro- 

 chloric 

 acid). 



cc per 100 

 grams. 

 79.71 

 60.86 

 85.96 

 26.10 

 49. 80 



70. 13 

 63.49 

 CO. 47 



68. 70 



55.04 

 43.06 



65.91 

 107.64 

 43.06 



75.66 

 79.10 

 33.31 



a Loc. cit. 



6 Present in small amount. 



c Present. 



