For demonstrating absorption of carbon dioxide by green plants in light, with equi-volumetric release of oxygen. Complete with stand.

For measuring and analysing gas given off by plants.Comprises a 1 mm bore capillary tube graduated 0-10 cm in mms and connected to two 2 ml syringes. The gas can be drawn along the capillary by one syringe and collected into the other for analysis, mounted on board.

Glass J-tube made out of thick-walled capillary tubing, with a brass screw & collar at end of longer limb. Used for sampling small quantities of gas in respiration or photosynthesis experiments.

Mounted on clear acrylic sheet.

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...

To measure gas evolved or absorbed by living materials or tissue extracts. A respirometer bulb with a small water reservoir at the bottom and hollow ground glass stopper at top in the neck with a hole which can be closed or opened by turning the stopper, a graduated burette opening out of the bul...

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

Leaf Clasp, Simple Form

Apparatus for Investigating Transpiration With thermometer.