For measuring the rate of uptake of water by a cut plant shoot. Consists of acentral reservoir with a three hole stopper holding a capillar tube graduated in mm,a funnel with stopcock and a short length of 10mm glass tubing to hold the plant shoot. Reservoir 100x65mm (HxD). Capillary tube 390mm long, 1mm Bore, graduated0-300 mm x 1 mm, funnel 25cm.