PROTOPLASMIC MOVEMENTS. 



27 



amphibian and other blood, in which it may be observed, though 

 far less satisfactorily, if Amoebae cannot be obtained. 



:*,?.. 



V 



. **, "O B > 7W . , 



vftalS 



FIG. 15. The Proteus animalcule (Amoeba Proteus). The arrows indicate the direction of 

 the flow. /, a microscopic plant which has been eaten; n, n', nuclei; ps, pseudopods: 

 v, vacuole. ( x 300). 



Among plants, protoplasmic movements of perhaps equal 

 beauty may be observed. One of the simplest is known as the 

 rotation of protoplasm, which may be studied to advantage in 



