Ganong’s Potometer is a device used to measure the rate of transpiration in plants. The borosilicate glass is a type of glass that is known for its high resistance to thermal shock, chemical corrosion, and mechanical stress. Some of the features of Ganong’s Potometer Borosilicate Glass are:

1. The potometer is made of high-quality borosilicate glass, which is transparent and allows easy observation of the water level in the apparatus.

2. The potometer consists of a glass tube with a bulb at the bottom and a graduated scale along the side. The bulb is filled with water, and the stem of the plant is inserted into the tube.

3. The potometer is equipped with a stopcock that allows the flow of water to be controlled, and a rubber tubing that connects the potometer to the plant.

4. The potometer is designed to be airtight, preventing the escape of water vapor from the system. This ensures that the rate of transpiration can be accurately measured.

5. The borosilicate glass used in the potometer is resistant to heat, so it can be used in experiments involving high temperatures.

Overall, Ganong’s Potometer Borosilicate Glass is a durable and reliable apparatus that is widely used in plant physiology experiments to measure the rate of transpiration.