On Mon, Jul 26, 2010 at 7:26 AM, Olin Lathrop w= rote: > Right, but where did you get the idea these were closed systems? =A0The O= P > said they were environmental chambers for the purpose of growing molds. = =A0I > wouldn't call something a "environmental chamber" that didn't have a way = of > adding water or removing water, in addition to adding and possibly removi= ng > heat. That is mostly correct. But they're not molds. They're fungi. All oranges are fruits, but not all fruits are oranges. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .