Cool, I'll make two test bricks with the same earth mixture, but use pine straw for one, and wheat straw for the other. I'll post my results too. Pat. http://www.gnat.net/~goshawk > Anyhow, I am in the process of making some test bricks using pine > straw and I will post the results if anybody is interested. > Brett > > > "There is No Hope, but I may be wrong."