BULLETIN 634, U. S. DEPARTMENT OF AGRICULTURE. 
An attempt to determine galactans on these samples was made, but 
the results are omitted, since in no case were the results over 1 per 
cent and on attempting to recover the mucic acid from the precipi- 
tates none was found. 
The methods of analysis were those of the Association of Official 
Agricultural Chemists, as given in the journal of that association. 
The starch was estimated by the diastase method. 
The results on sample Xo. 2 show that no change which could be 
detected by the analyses made was caused by soaking. 
These analyses may well be compared with those of different par's 
of the corn kernel made by Hopkins, Smith, and East 1 in their study 
of the structure of the corn kernel. In this work three samples of 
corn differentiated by the amount of protein contained, namely, low, 
medium, and high, were examined. The one containing the medium 
amount of protein has been selected for comparison with kafir, since 
it is nearest the normal. They divided the horny endosperm into 
two parts, " horny gluten " and " horny starch." These analyses have 
been combined so as to compare with kafir " horny endosperm." 
They also divided the starchy portion into "crown starch" and "tip 
starch." These have also been combined to correspond to kafir 
"starchy endosperm." 
The following table compares the parts of the kafir kernel with the 
corresponding parts of the corn kernel: 
Table III. — Comparison of kafir and corn separations. 
Material. 
Kernel. 
Ysh Ether 
^ bQ - extract. 
Protein. 
Carbohy- 
drates. 
Corn hull* 
Per cent. 
7.39 
6.1 
55.59 
48.9 
25.49 
35.0 
11.53 
10.0 
Per cent. Per cent. 
0.79 0.89 
2. fi. 8 
Per cent. 
3.96 
4.8 
11.85 
14.5 
7.84 
11.06 
19.80 
19.3 
Per cent. 
94.36 
86.4 
Horny endosperm: 
Com 
.44 
.3 
.26 
.3 
9.90 
13.2 
1.15 
.7 
.24 
.8 
34.84 
31.5 
86.56 
Kafir 
84.5 
Starehv endosperm: 
Coin 
91.66 
Kafir 
87.3 
Germ: 
Corn 
35. 46 
Kafir 
36.0 
The figures for percentage of the various parts of the corn kernel 
are taken from Table III on page 87 of the Illinois bulletin, and those 
for the composition are taken from Table I, on page 83. 
In comparing the analyses of kafir bran with corn bran, or corn 
hulls, the most noticeable difference is in ether extract. The kernel 
of corn is developed under the protection of husks, but the kernel of 
kafir grows in a somewhat exposed condition. When measuring the 
kernels it was found that they seemed slippery and it was difficult to 
hold them with a forceps. This led to the belief that the kernel 
1 Illinois Agr. Exp. Sta. Bui. 87, Aug., 1903, p. 83. 
