18 INDIAN CORN CULTURE. 
between them clearly seen by splitting the 
kernels. In Fig. 3 the shaded parts of kernel 
above the base represent hard or corneous mat- 
ter; the white parts starchy matter. 
Pop corn.—The substance of the center ker- 
nel is hard and flinty (corneous) all through, 
excepting at the germ end, no white, soft 
starchy substance being present. See @ in 
Fig. 3. 
Flint corn.—The corneous matter surrounds 
the sides and top of the kernel, so that it is en- 
closed in a hard, flinty coat, with soft starchy 
substance in the central part. The kernel is 
usually about as broad as long, and rounding 
and smooth over the top. Flint corn is some- 
what smaller than dent, and is best suited to 
New England and the northern line of corn 
growing. See bin Fig. 3. 
Dent corn.—The sides of the kernels consist 
of corneous matter with the central part filled 
with soft material, even to the dented or con- 
tracted rough top. This contraction is due to 
shrinking of the softer part of the kernel in 
ripening. The kernel in many varieties is 
slender or wedge form. Nearly all the corn 
grown in the great corn belt of the Central 
West belongs to this race. See cin Fig. 5. 
Sweet corn.—The kernels consist of translu- 
cent, horny material, which contain consider- 
able sugar (glucose) instead of starch. The 
