Bottle, Canada Balsam

Catalogue No. 4012050

Comprises a narrow bore bent glass tube clipped to a scale 0 to 30cm x 1mm and fitted by a rubber stopper in a wide mouth bottle. The stopper is also fitted with a dropping funnel and has a
hole to take the stem of a plant.

Catalogue No. 4012400/1

Takes one revolution every 15 minutes for 24 hours in vertical or horizontal position. The plant is sown in the pot, with clock movement on heavy metal base.With ON/OFF mechanism.

Catalogue No. 4012200

For measuring and analyzing gas evolved by the plants such as Elodea. Comprise two syringes connected to a collecting tube through a 3-way tap. This arrangement enables the gas to be drawn along the capillary tube by one syringe for analysis. The apparatus is mounted on a back board about 240 x 100mm, capillary bore 1 mm.