“Soils seriously deficient in minerals
cannot produce plant life competent to
maintain our needs, and with the
continuous cropping and shipping away of
those concentrates, the conditions become
worse.”
“Disease preys most surely and most viciously
on the undernourished and unfit plants,
animals and human beings alike,
and when the importance of these obscure
mineral elements is fully realized the
chemistry of life will have to be rewritten.”
Stephen Follett
1926