Digging for 

 Eurechis 



Hollow Glass 

 Needle extracts 

 Eggs and Sperm 



Nucleus, 

 Protoplasm 

 and Yolk 



Protecting 

 Skin has 

 Formed 



It elongates 



V* 



Microscopic 

 in Size 



Dividing into 

 Two cells, then 

 Four, etc. 



Divides into 

 Two Complete 

 Cells 



* A Thousand 

 I by Next 

 Morning 



Then Four, etc. 



**f~a 



CELL DIVISION (METOSIS) IN THE EGG OF THE URECHIS 



