For measuring the rate of uptake of water by a cut plant shoot. The apparatus consists of a central reservoir with a three hole stopper holding a capillary tube graduated in millimeters, a funnel with stopcock and a short length of 10mm glass tubing, to hold the plant shoot. Reservoir 100 x 65mm height x diameter, capillary tube 390mm long 1mm bore, graduated 0-30mm x 1mm, funnel 25ml, Capillary bore 1mm.
