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Fire By Friction - Using a fire-kit made with stone tools |
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Written by Mark Whitcombe
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Page 2 of 4
Gouging the socket stone.
The socket rock is a piece of fairly fine-grained limestone. I chose this particular rock because it already had a large cavity in it, because of a brachiopod fossil. This made gouging out the hole much easier, using the hard chunk of Onondaga chert shaped like a large burin. The chert tool is actually from the weathered surface of a chunk of better quality chert from the north-east shore of Lake Erie. There’s nothing special about this gouge tool — other than that it is tough. |
Notching the hearthboard.
I’ve gouged out the beginning of a hole for the spindle, centring it about one-and-a-half spindle diameters from the edge of the hearth board. The notch itself is wider at the bottom than the top, and wider at the outside than in the centre of the hole. All of this is so that the ember will drop out easily without breaking apart. |
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Separating layers of inner basswood bark to make twine.
I have used twine made from the inner bark of basswood for the bowstring. This twine will not be durable enough — even though it’s strong enough to lift my 110 kgs. Leather thonging may not be as strong, but it’s much more resistant to the wear and tear of rubbing, so it would be the expected material. Today, I use braided drapery cord — much stronger and more durable even than leather. But this is an ‘authentic’ kit, and so I have made twine from the inner bark of basswood. I cut the bark off a small basswood tree (removed during trail maintenance), soak it (‘retting’) in the river for four weeks, separate and discard the outer bark, and then use the inner bark to make twine. Inner bark grows in annual layers just as does the wood, and separating the bark into thin layers gives much more control over the material.
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Twining basswood bark.
Twining fibre in this ‘z-twist’ manner is a technique that humans have been using for tens of thousands of years. I am using the thigh-rolling technique here — the method generally used by women, since it’s much faster and more efficient than the alternative of finger-twisting. Huron families had fishing nets perhaps hundreds of metres long made of basswood twine, or their preferred wood-nettle. |
Trimming the twine.
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