A microburette used for measuring and sampling gas given off by aquatic plants e.g. Elodea. The microburette comprises of a bulb tube graduated from zero to 150mm into which the cut end of an Elodea shoot is inserted.Gas is collected in the burette and may be drawn into a syringe for analysis. Comes complete with 5cm syringe and screw clip.Capillary bore: 1mmOverall height: 300mm