A glass tube 15 mm dia with a side arm leading to a thistle funnel in rubber tubing has both its ends tapered and bent at right angles. One end would accept plant stem and the other is connected to a capillarity tube with mm scale, mounted on an L shaped stand.

For measuring and sampling gas given off by aquatic plants e.g. Elodea. Comprises a bulb tube graduated 0 to 150 mm into which the cut end of the shoot is inserted. A 5 ml syringe is provided at top to draw gas collected in the burette for analysis. Overall height 300 mm.

To measure the quantity of water absorbed and given off by a transpiring plant. Consists of a glass vessel 250 x 50 mm with rubber stopper at top & a side tube graduated 0-15 cm x 1 cm.

Apparatus for Investigating Transpiration With thermometer.

Leaf Clasp, Simple Form

Made from steel, capable of cutting very thin material, fitted with brass pipe having holes.

The ESAW Spirometer is a precision-engineered device designed for accurate measurement of lung capacity and respiratory performance. Ideal for clinical diagnostics, research laboratories, medical colleges, and hospital respiratory therapy units, this high-quality spirometer ensures reliable resul...

Compact unit to compare rates of absorption or evolution of gases by small organisms during respiration. Two stoppered boiling tubes are connected by three-way taps at either end of a manometer. One tube holds the organisms and has a syringe for altering level of liquid in the manometer during se...