ELIMINATION OF GREEN BODIES FROM CELLS OF HYDRA. 243 



Fig. I. Cross section of a green hydra that had been without food for 13 days. 

 Fig. 2. Longitudinal section of a green hydra that had been without food for 13 



days. 



Fig. 3. Cross section of a green hydra that had been without food for 36 hours 

 and then put into a 0.5 per cent, glycerine solution for i hour. 



Fig. 4. Cross section of a green hydra that had been without food for 36 hours 

 and then put into a 0.5 per cent, glycerine solution for 3 hours. 



mouth of living hydras which were in glycerine solution. They 

 were also found in greater or less numbers in the enteric cavity 



