The article does “imply” the floors are mud. Rina that she “…convinced Ralph to allow all mud floors…” and Rina states: “I like the idea of a soft floors,” Your photograph of the floor on page 101 shows the floor is not smooth like concrete but shows “ripples” like mud would make. In any case I appreciate the article and photographs. They were inspirational and we enjoy our mud-poured floor. Everyone who visits us out in the remote area of White Rock near Lake Valley are impressed. I will order the Canelo Project 2009 and the Straw Bale House with Athena’s house for resources. Thanks again.