Fig. 8. — Typical Animal and Vegetable Cells. 



a' — A^, living leucocyte (blood corpuscle) of a crayfish showing 

 amoeboid movements : A'', A®, the same, killed and stained, showing 

 the nucleus (««). 



b\ leucocyte of the frog, nu the nucleus ; b'^, two leucocytes 

 beginning to undergo fusion : B^ the same after fusion, a binucleate 

 Plasmodium being formed : B^, a leucocyte, undergoing binary fission : 

 B*, surface view and B*, edge view of a red corpuscle of the same, 

 nu, the nucleus. 



o', C-, leucocytes of the newt ; in c^ particles of vermilion, repre- 

 sented by black dots, have been ingested. 



C^, surface view and C*, edge view of a red corpuscle of man. 



d\ columnar epithelial cells from intestine of frog : d'^, a similar 



