Almost any land contains enough food for the growing of good crops, but the food elements may be chemically unavailable, or there may be insufficient water to dissolve them. It is too long a story to explain at this place,--the philosophy of tillage and of enriching the land,--and the reader who desires to make excursions into this delightful subject should consult King on "The Soil," Roberts on "The Fertility of the Land," and recent writings of many kinds. The reader must accept my word for it that tilling the land renders it productive. I must call my reader's attention.
