I20 THE EVOLUTION OF SEX. 



classification however whicli, under varying titles, is more or less 

 distinctly recognised by all the authorities on the subject. 



But if he went further than casual inspection, and studied 

 the life-history of some of the very simplest forms, such as some 

 of the primitiA-e moulds or ]\Iyxomycetes, and followed Haeckel's 



The eucibted Frozomyxa, and its division into numerous individuals within the cj-st. 

 — From Haeckel. 



account of the life-cycle in Frofomyxa, he would gain new light 

 on his classification. For in these life-histories he would find 

 the cells now encysted, novr active lashed spores, and again 

 sinking down into the compromise of equilibrium effected by 



i 



The cj-st oiProioiP.y.va bursting, the flagellate young stages becoming at once amoeboid, 

 eventually to unite in a composite amccboid mass, or " plasmodium." — After Haeckel. 



