Diagram of the slide culture (A) and the simple experimental
chamber (B) constructed by trimming the culture and applying a cover glass
which is secured by four drops of wax. The slide culture was prepared by
dipping one side of the slide into melted agar medium and, after cooling,
inoculating with a strip of hyphae at one end. The hyphae grew roughly parallel
to the long axis of the slide (see parallel lines).