General description
See page 231 of <a href="http://www.considera.co.uk/hxx/index.php?main_page=product_info&cPath=79&products_id=358"><b>Dr Rudolf Steiner's Commentary on the Agriculture Course</b></a> (<a href="http://www.considera.co.uk/hxx/index.php?main_page=product_info&cPath=81&products_id=389">also available as an ebook</a>) in which Enzo Nastati describes the thinking leading up to and the creation of this preparation.