A book for farmers and gardeners
who are interested in improving the fertility and 
productivity of the soil with organic manure which
 has been treated with special additives. The additives,
known to biodynamic farmers as preparations, are discussed
 in detail as to their application. Dr. Remer also discusses
the care and treatment of various manures so that our soils can 
be ever enriched. As an addendum, there is a discussion of 
Chinese methods of organic manuring.