Dark Chamber
For experiments in phototropism. A stout cardboard black-lined box with aperture tube and end cap. Overall size 200 x 160 x 130 mm, side tube 110 x 50 mm dia.
For experiments in phototropism. A stout cardboard black-lined box with aperture tube and end cap. Overall size 200 x 160 x 130 mm, side tube 110 x 50 mm dia.