Agamogenesis. 



MODES OF REPRODUCTION 

 TO THE ORIGIN AND GRADUAL APPEARANCE OF SEXVAL DIFFERENTIATION.* 

 Protocoeci. &-c. 



i-spores, &c. 

 Meioseirece. Kolpod<z, &c. 

 Vorlicellina, &c. 

 i (contiguous cells) of same individual— 5/i"r(»,gyi'<i. 

 in connecting t 

 . Union in cell of one of filaments— 5^i> 

 two embryos much lai^er than parents— Z>ia/t>wi 

 onp embrvo /*" Which develops without segmentation— /'^jwirfitf'. 



y I ^ Which segments into many o'Ca^^^Palmoglaa, Gregarx 



gle embryo mass which does not segment— Ptij 

 Producing embryo mass which subsequently segments and yields— il/<^tai/j-. 



