r//^ 



194 



THE BEGINNINGS OF LIFE. 



large particles gradually disappeared until nothing but 



c 



I 



M5iM(2^^^^tt' 



Fig. 10. 

 Reproduction of Protomyxa. (Haeckel.) 



a. Protomyxa aurantiaca encysted; a homogeneous ball of protoplasm, 



surrounded by a structureless, gelatinous covering, x 300. 



h. The same in later stage of development. The plasma ball completely 



divided into small globular bodies. x 300. 



c. Cyst ruptured, showing exit of active spores, having long tail-like 



prolongations. After a time these become stationary ; they retract 

 their tails, and protrude instead a number of pointed irregular 

 processes. In this condition, they are true amoeboid creatures, 

 still without vacuoles or nucleus in their homogeneous body 

 substance. 



a few fine granules were left scattered through the 

 otherwise perfectly homogeneous protoplasm mass. 

 Then, in the course of a day or two, and after it had 

 retracted somewhat from the hyaline capsular wall; 



traces of segmentation revealed themselves in 



this 



g them, in ^ 

 each oth( 

 hours aftenv 

 i the red balls 



(tich one end wa 



sed motions 



c 



ikpe of their sof 



I sometime; 

 a shorter di 



e twisted. 



*= cfsts burst • tl 



lite the 



e 



sporul 



^"^0 



e; 



«ile V 



nio 



''■ but 



vacuoi 



e 



) 







cii 



^vere 



a 1 



in 



