Translated from the German writings of Julius Hensel, the book was designed to introduce the people of the U.S. to the idea that plants require healthy food in order to flourish, just as a human being does. It describes a then-new and rational system for fertilization which has become science today — fertilizing with stone dust.
In the excerpt below, Hensel dives into the chemicals which are found in various fields with different mineral makeups, and the plant species which flourish within.
Copyright 1991, softcover, 102 pages.
From Chapter 2: Healthy and Unhealthy Produce
According to the chemical examination of the ashes which remain when plants are incinerated, the average result shows about as much potash and soda as lime and magnesia. Silicic acid is somewhat more than one-fifth of the sum of these four bases, chlorine about one-twentieth of the whole, phosphoric acid is one-sixth, but sulfuric acid is only one-fourth in weight of the phosphoric acid.