>        What does this mean for paleolithic eaters?  They should probably
>give up smoking, anyway.  There is good evidence that chewing tabacco does
>cause mouth cancer, and we strive to drug ourselves in the absesnce of
>technology as sophisticated as a Bic lighter.

uh, Karl, is it OK if i smoke if i ditch the Bic and carry around some flint
and a rock in my pocket?

<G>

JoAnn.