"Hi" Jerry, Do you want the good news first: If you have mold, then the info from Henry in Mi is as near to geting rid of as you can get..... BUT.. Now the Bad news. Is the "mold on stone or timber. ? If its on stone then no problem, you can get rid of it fast. If its on timber, well you "could have a problem". There are two main type of fungus that lives in basements where the air is warm and still, (1) it is call Wet Rot or Mine fungus ( coniophora cerebella ) This will only attack wood, like an old beam, but it will stay on that beam till the beam is like wet powder then it will die. "It will not attack other timbers in the area. (2) Dry Rot ( Merulius Lacrymans )if you have this then you have big problems. has the "mold" the appestance of cotton wool, thin and pancake looking with white in colour on the edges and brown dust like in the center. If its on wood then put a knife into the timber to see if its soft. the fibres of the timber will break down it will look like small cube in the timber. Have a look to see if there are little fibre strands, white, on and in the wood look to see how far the strands have gone. the strands are the fingers of the dry rot and are looking for more food (wood) the strands can go through brickwork (true) so look around, even behide plaster cut a small hole in the plaster about 6"x6" down to the brick if you find Mycelium (white strands) cut another hole about 2' and look again. PLEASE COME BACK ON THIS MATTER,IT COULD BE NOTHING (I Hope for you) or you could have problems. John 2000. PS: If you get an "Expert" to look at what you have, get him to give you the latin names, if he does not know, Drop him.