To measure plant growth rate. The recording arm 600 mm with a bristle tip at one end is mounted on an adjustable pillar enabling alteration of height and pressure of the bristle on a disc of 200 mm dia. The other end of the arm has three eyes to give x3, x4, x5 magnifications. A smoked disc is mo...

Records growth of a plant as a series of horizontal traces, the gap between which represents one hour’s growth. The recording lever has 3 notches giving x5, x7 and x10 magnifications and is mounted on an adjustable pillar to adjust its height and pressure on the pencil tip. The recording drum has...

To fit clinostat in place of cork disc, accommodates pots upto 75 mm dia, with three hooks near upper edge to secure pots.

For attaching to clinostat, takes upto 15 tubes for experiments in geotropism with germinating seedlings.

For analysis of air and expired gases. A graduated burette tube with rubber stopper at one end and a glass tube connected to rubber tubing fitted into a mohr clip. The other end is closed by a suba-seal stopper.

To demonstrate rates of transpiration and of water absorption by a cut shoot, with a graduated capillary tube bent down at right angle at one end with a small orifice and having water reservoir with glass stopcock and the end tube with rubber stopper for the plant shoot at the other end, on base.

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.

Apparatus to measure absorption of water by transpiring plants, Comprising a glass tube with upper end of straight limb closed with rubber stopper, lower end of the limb is fitted with a bored rubber stopper to take length of capillary tubing.