Description

For experiments in phototropism with seedlings. Three chambered case of wood with to accept a variety of shutters. The right hand chamber has windows in the top and back and, when used with a clear front widow, acts as a control chamber. Supplied with opaque shutter, a slot shutter to admit light from one direction only, clear window for the control chamber, one orange and one blue filter to show the effect to excluding various parts of the spectrum. Complete with three glass containers for seedings. Dimensions overall 180x530x180mm height x width x depth.