PLATE I. 



FIGS. 



1, 2. Amoeba proteus (Pallas) Leidy. (p. 41) Forms of a 

 single individual. In fig. 1 the ectoplasm is repre- 

 sented as seen adhering to the cover-glass. Pond 

 at Bangley, Cheshire, x about 400. 



3. A. proteus var. granulosa Cash. (p. 47) In rapid move- 

 ment. Hale Moss, Cheshire, x about 400. 

 4-6. A. proteus. Fig. 4. Common pond form, the plasma- 

 body appearing in two nearly equal masses with a 

 connecting isthmus in which the contractile vacuole 

 appears centrally situated. Figs. 5 and 6. Two 

 views of a smaller pond form, containing a Navicula. 

 All x 300. 



7-10. A. actinophora Auerb. (p. 48) Figs. 7 and 8. Active 

 and quiescent states. Pond at Chelford, Cheshire. 

 Figs. 9 and 10. Another individual exhibiting the 

 same phases. From the same pond. All x 450. 



