Presumedlost said everything I can, and you found the WW article which I was going to mention. Firemaking with two stones is probably more Hollywood than actual practice. It's known to many peoples, but just like us they have more than one method. Stones are a tough way to go. We think of 'The Stone Age', forgetting that they used many wood animal and vegetable raw materials that have not survived. www.ragweedforge has a good section on firemaking. As an aside, many people have trouble with wet wood using various friction devices. What happens is simple. We use a RPM that initially dries the wood at the friction source. Once dry, we unconsiously continue that RPM which merely abrades the wood away in a fine powder. This is easier to demonstrate than to describe. I managed to ignite truly wet wood ONCE. I was under extreme duress and very focused on the task. I carry a Sparklite, lifeboat matches, safety matches, magnesium bar, metal match and a lighter in my main kit and person! A survival scenario is no time to replicate QUEST FOR FIRE!<br><br>