Dr. Mathews: For those of you who are close to University Park there aren't swamps very far away. If you go to Tussy Mountain and keep on going and follow the signs for the nature area you will come across a very small swamp or technically a type of bog. Very close to State College. It is a very interesting drive and a very interesting ride. But it is still going on. The process that very important three-hundred million years ago in this region for a large quantity of coal that was formed, is still happening today. It is just that to form the crude oil and to form coal and natural gas it is such a long time process that these swamps won't be of any use to use because we cannot afford to wait that long. But go and take a look around they are very beautiful. Essentially the key ingredient is a relatively stagnant water supply because that way it has a low oxygen content. And if it has a low oxygen content, that is what's important to the decay process. Look at the equation. You need to have oxygen. If you can protect the system of oxygen then only certain bugs will be able to nibble at these various components of this organic material.