Dry Stacked Inca? Stone walls?

[Tomas Lipps <tmlipps@xxxxxxxxxxxxx>]

mortarless stone walls which are well built have the quality of being able to
adjust -somewhat- to the movement of the earth upon which they are built.
Their ability to withstand such violent movement such as an earthquake depend
on the size and orientation of the individual stones and the way they are
bonded or "woven" together. The Inkas, intuitive engineers they must have
been, created interlocking forms.  The Japanese builders of medieval castle
walls, caused them to lean inward against a solid core.  For more  information
on this and other aspects of stone construction you might consider attending
the Stone Work Symposium in Santa Fe, NM Nov. 4th thru 7th where you will have
the opportunity to pose questions of this nature to an assembly of experienced
masons and others knowledgeable about stone construction.  Check it out at
http://www.stonefoundation.org