﻿LIVING PLANTS 



Fig. 12.— Apparatus for growing plants in an atmosphere 

 free from carbon dioxide: 1. Dish containing solution of jio- 

 tassium hydrate. 2. Specimen of Aiisiema triiihylhnn 10 

 days after opening of bud. 3. Receiver of 10 liters capacity. 

 4.. Outlet-tube connected with aspirator. 5. Sticks of potas- 

 sium hydrate and moist asbestos fiber. 6-9. Detail of method 

 for sealing plant in receiver. 6. Cork. 7. Asbestos fiber. 

 8. Mercury. 9. Stem of plant. 10. Sponge saturated with 

 water. 



