1 8 THE HYDRA. 



Exercise 2. Draw polyps showing any details not included in exercise i, 

 particularly buds or sexual reproductive organs. If prepared slides 

 of cross and horizontal sections of tlw Hydra are furnished you 

 make drawings of these also. 



If time will permit, the student may undertake interesting experi- 

 ments in mutilating some of the polyps and noting the gradual reproduc- 

 tion of the lost parts. 



