48 COCOA AND CHOCOLATE. 



Percentage of 



Ash. 



Fine Surinam 36 



Fine Surinam (small) .... 3.15 



Mexican 4* 2 7 



Dominican 2.82 



African 2.68 



The mean of the twelve being . 3.39 



" Separate determinations of the ash of 

 the nib and the shell have also been made. 

 In the nib of the Caracas the ash amounted 

 to 3.95 per cent., whereof 2.00 was soluble 

 in water, and 1.95 insoluble in water. 



" In the nib of the Mexican seeds the ash 

 was found to be 2.59 per cent., whereof 

 0.89 was soluble, and 1.70 insoluble, in 

 water. The shell (which, as mentioned 

 above, formed only a very small portion of 

 the entire seed) is much richer in mineral 

 matter or ash. I have found as much as 

 7.81 per cent, of ash in the shell. The 

 composition of the ash of the shell is very 

 different from that of the nib ; whilst the 



