SUMMARY OF RESULTS OF ANALYSES. 959 
a beaker with alcohol and transferred to the crucible through which the alkali ex- 
tract had been refiltered. After displacing the alcohol] with ether, the residue was 
dried at 110° C., weighed, ignited, and weighed again. The difference — the weight 
of crude fiber. 
SUMMARY OF RESULTS OBTAINED BY VARIOUS ANALYSTS. 
A summary of the results of analyses by various chemists is presented 
in the tables given below. These analyses were obtained, for the most 
part, from Kénig’s Chemie der menschlichen Nahrungs- und Genuss- 
mittel, 3 Aufl., Band I. The tables of analyses given by Konig are 
abridged here, by giving only the means, maxima, and minima of the 
results reported by each analyst on the same class of samples. It is 
believed that the tables, with appended notes, will be found self-explan- 
atory. 
As will be seen by reference to the tables, most analysts have reported 
the percentage of total nitrogenous matter, including theobromine. 
This figure is obtained by multiplying the per cent of total nitrogen by 
6.25. This factor assumes the per cent of nitrogen in albuminous mat- 
ter to be 16 per cent. Theobromine contains 31.1 per cent of nitrogen. 
The per cent of nitrogenous matter, including theobromine, can, there- 
fore, be changed to the approximate per cent of nitrogenous matter, 
not including theobromine, by subtracting twice the percentage of 
theobromine from the number given as nitrogenous matter, including 
theobromine. 
The percentages of theobromine, reported by Zipperer are considered 
too low by many authorities. This seems to be due to imperfect ex- 
traction of the theobromine by the method he used. (For the details of 
the method see page 953.) 
The tables given on pages 967 and 968 will be found to contain inter- 
esting data concerning the quantitative relations of the constituents of 
the cocoa bean and its preparations. Bensemann also reported analyses 
of the ashes of the same samples, the results of which are given on page 
969. 
